What Is An Event Handler In App Inventor

Extensions Directory

This page lists all available extensions for App Inventor and its distributions like , WxBit Chinese version, , and .

How to avoid runtime errors with the companion app

After importing an extension, please restart the companion app.
If you like to use an extension on a different screen, in Screen1 additionally drag the extension into the working area.

While starting the companion app, all necessary assets and also the imported extensions of your project will be copied to your device. So in case the no such class error shows up, the extension code to run the extension is not available on your device. Without that code the companion app is not able to execute methods from the extension.

In case restarting the companion app does not work for you after trying several times, then as it looks like the only way for you to test you app will be after building it using the apk file.

How to Search the Extensions Directory

Please use the Search feature of your browser to search the extensions directory. Use the keyboard shortcut by pressing Ctrl-F. A find bar will appear. Type a search into the find field. See also the Firefox help or Google Chrome help.

Available Extensions at Pura Vida Apps

Alarm Extension to set an alarm or a timer programmatically. Also a repeating alarm is now possible.

Alarm Manager Extension with Notification or Autostart to send a notification at a given time only once, hourly or daily. After clicking the notification your app will be started.You can define a start text, which will be passed to your app in method 'get plain start text' and trigger some action after your app is started. Also of course works if your app is not running. You also can define several alarms, just use a different id for each alarm.

Billing Extension to use Google In-App Billing in your App Inventor app for Products (both non-consumable and consumable) and Subscriptions.
Version 3: using Google Billing API V3.0.3. The extension now uses directly the Google Billing API and has been rebuilt completely.

Classic Bluetooth Extension to enable/disable bluetooth without user interaction, scan, pair/unpair devices

Camera Extension to take pictures programmatically without user interaction.

Exif Extension to read and write Exif tags in a JPEG file or a RAW image file.

FTP Extension to upload or download files to/from your server via FTP

Location Service Extension. This extension is able to run in the background while your app is closed and stores location data (latitude, longitude and optionally current datetime, altitude, accuracy, speed, current address and provider) in TinyDB.
Also a background web functionality is available which can be used to send the location data to a web service of your choice using a POST request. This could be used for example to store the location data in a MySQL database or to send an email after a location change was detected while the app is not running.
A notifier will be displayed while the location service is running in the background.

Notification Listener Extension to listen to all notifications of your device. This service runs in the backround also if your app is closed. It will listen to all notifications and stores them in TinyDB (aka shared preferences).

Package manager Extension to get information about installed apps and to be able to launch an installed app using a package name.

Pdf Extension to open pdf files and render a specific page (without using an external app).

Textbox Extension to get/set cursor position, to highlight text, to have an event, which fires after text changed

Texting Extension, read all SMS from the inbox, draft and sent folders.

Tools Extension, a collection of several tools, which do not need additional permissions.

Further Extensions on other pages

1. MIT App Inventor

Supported

Bluetooth Low Energy Extension by MIT App Inventor
Look Extension Extension by MIT App Inventor. Adds object recognition using a neural network.
Personal Audio Classifier Extension by MIT App Inventor to recognize sounds
Personal Image Classifier Extension by MIT App Inventor to recognize images
Posenet Extension by MIT App Inventor to estimate a pose
FaceMesh Extension by MIT App Inventor to estimate face landmarks

Unsupported

Vector Arithmetic Extension by Ethan: Takes in two vectors and can add them to return a result vector.
Image Processor Extension by Justus: can do a weighted combine of two images, return the greyscale of an image.
Scale Detector Extension by Hal: Adds a multitouch scale gesture detector to a Canvas.
Sound Analysis Extension by Mouhamadou: analyzes the pitch of a sound through the microphone and returns it.
Sound Pressure Level Extension by RIT App Inventor: to measure the sound pressure level using the microphone and return the data in decibels.

Removed

Rotation Detector Extension by Xinyue Deng, which reacts to two-finger rotation gestures.
ChartMaker Extension by Kate Manning and Emily Kager
Android Things Extension by Thilanka Munasinghe

Internet of Things

Arduino 101 Extensions by MIT App Inventor
BBC micro:bit Extensions by MIT App Inventor
LinkIt IoT Extensions by MIT App Inventor

2. Mad Robots

Gyro Sensor Extension by Gareth
Sound Extension by Gareth: offers Pitch effects, Volume Control, Speaker Balance

3. Makeblock

Computer Vision Extension by Makeblock: for color detection, face detection and feature analysis (using online API).
mBot Extension by Makeblock: to control Makeblock mBots.

4. Thunkable

Microsoft Emotion Recognizer by Thunkable
Microsoft Image Recognizer by Thunkable

Note: I received a message, that these exensions are outdated and are not longer working. Also Thunkable removed the documentation of these extensions.

5. Appybuilder
Note: The Appybuilder community has been closed.
You now can download the free extensions, which have been published there in this MIT App Inventor thread.

Date Utils Extension by Appybuilder, Download link from sourceforge.

List Utils Extension by Appybuilder, Download link is here.

Text Utils Extension by Appybuilder, Download link is here.

Rating Bar Extension by Appybuilder, Download link from sourceforge.

Dynamic Component Extension by Appybuilder - web.archive.org link, Appybuilder community has been closed

Memory Info Extension by Appybuilder - web.archive.org link, Appybuilder community has been closed

Radio Buttons Extension by Appybuilder - web.archive.org link, Appybuilder community has been closed

6. Mika - nmd-apps.jimdo.com

The webpage to download the extensions unfortunately does not exist anymore.
But you can still can download them here.

Simple Mathematics Extension by Mika (Test Extension)
Body Mass Index Extension by Mika (Test Extension)
QR Code Extension by Mika
Special Tools Extension by Mika
OCR Extension (Version 5) by Mika
Image Editor Extension by Mika
Click Listener Extension by Mika (10 USD)
Gesture Handler Extension by Mika
Google URL Shortener/Unshortener Extension by Mika (Note: does not work anymore, because goo.gl has been closed)
Night Mode Extension by Mika, returns true if the device night mode is on.

7. Helios aka Vishwas Adiga

Dialogs Extension by Helios and Mika
Colors Extension by Helios
Extra Components Extension by Helios

Note: You only can use one extension developed by this developer for a specific project. Using more as one extension results in DX execution failed error. The developer seems to be not very interested in fixing this bug for the community, it would take him only 5 minutes... For details see also here.

8. Pavitra

Arduino USB Serial Extension by Pavitra
In App Billing Extension (Beta) by Pavitra
Root Checker Extension by Pavitra
Floating Action Bar Extension by Pavitra & Sander

9. Andres Daniel Cotes - andrescotes.github.io

Note: The Appybuilder community has been closed.
You now can download the free extensions, which have been published there in this MIT App Inventor thread.

ActionBar Extension by Andres Daniel
ActionBar Extension by Andres Daniel (10 USD) - web.archive.org link, Appybuilder community has been closed
Android Theme Extension by Andres Daniel
Animation Extension by Andres Daniel
Animation Plus Extension by Andres Daniel (10 USD)
Animation Color Background Extension by Andres Daniel
Async Player Extension by Andres Daniel (25 USD) - web.archive.org link, Appybuilder community has been closed
Async Videoplayer Extension by Andres Daniel (25 USD) - web.archive.org link, Appybuilder community has been closed
Autocomplete Textbox Extension by Andres Daniel (discontinued, see extension from ColinTree below)
Badge Extension by Andres Daniel
Encode Barcode Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Barcode Scanner Extension by Andres Daniel to increase or decrease the zoom of the camera while scanning. - web.archive.org link, Appybuilder community has been closed
Button Addon Extension by Andres Daniel
Button Deluxe Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
CallLog and WhatsApp Utils Extension by Andres Daniel
Camera Viewer Extension (update July 23, 2018) by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Chat Listview Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Check Listview Extension (Checkbox Extension) by Andres Daniel (25 USD) - web.archive.org link, Appybuilder community has been closed
Circle Display Extension by Andres Daniel (10 USD)
Cloudinary DB Extension by Andres Daniel (unknown price) - web.archive.org link, Appybuilder community has been closed
Color Picker Tool Extension by Andres Daniel (10 USD) - web.archive.org link, Appybuilder community has been closed
Control Dimmer Extension by Andres Daniel
Create Pdf from Table Extension by Andres Daniel
CSV to Json encode Extension by Andres Daniel
Custom Listview Extension by Andres Daniel (15 USD, or custom version: 35 USD)
Custom Spinner Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Dialog Custom Listview Extension by Andres Daniel (35 USD) - web.archive.org link, Appybuilder community has been closed
Display Table in Webviewer Extension by Andres Daniel
Dots View Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Drag and Drop Listview Extension by Andres Daniel (35 USD) - web.archive.org link, Appybuilder community has been closed
Drawer Arrangement Extension by Andres Daniel (5 USD) - web.archive.org link, Appybuilder community has been closed
Easy File Server Extension by Andres Daniel (20 USD) - web.archive.org link, Appybuilder community has been closed
Encode MD5 Extension (also called KleyberTool Extension) by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Encryption 3DES Extension by Andres Daniel (10 USD) - web.archive.org link, Appybuilder community has been closed
Equalizer Extension by Andres Daniel (20 USD) - web.archive.org link, Appybuilder community has been closed
Evaluator JavaScript Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Excel Extension by Andres Daniel (paid) - web.archive.org link, Appybuilder community has been closed
Face Detection Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
File Picker Plus Extension by Andres Daniel (12 USD) - web.archive.org link, Appybuilder community has been closed
Floating Action Button with Material Icon Extension by Andres Daniel
Gallery Path Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Gauge Extension by Andres Daniel
(new) Gauge Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
GMail Utils Extension (June 2018 update) by Andres Daniel (free and 10 USD) - web.archive.org link, Appybuilder community has been closed
GPX Writer Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Grid Card Extension by Andres Daniel (custom extension: 55 USD) - web.archive.org link, Appybuilder community has been closed
Grid Switch Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Grid View Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Horizontal Arrangement Addon Extension by Andres Daniel (Test Extension) - web.archive.org link, Appybuilder community has been closed
Joystick Extension by Andres Daniel
JSignature Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Label AddOn Extension by Andres Daniel
LED View Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Linkrex.net API Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
ListView Custom Filter Extension by Andres Daniel
ListView Swipe Extension by Andres Daniel (custom extension 35 USD) - web.archive.org link, Appybuilder community has been closed
Location Service Util Extension by Andres Daniel (10 USD) - web.archive.org link, Appybuilder community has been closed
Mail Client Extension by Andres Daniel to send messages (SMTP) and receive messaes (IMAP) (unknown price) - web.archive.org link, Appybuilder community has been closed
Markdown Viewer Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Material Card Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Material Card Listview Extension by Andres Daniel (paid) - web.archive.org link, Appybuilder community has been closed
Memory Size Extension by Andres Daniel
Mock Location Extension by Andres Daniel (15 USD) to modify the position data of the gps - web.archive.org link, Appybuilder community has been closed
Modbus Extension by Andres Daniel (30 USD) - web.archive.org link, Appybuilder community has been closed
MQTT Extension for Arduino and ESP8266 by Andres Daniel
MQTT TCP/IP Extension by Andres Daniel (20 USD)
MQTT TCP with service Extension by Andres Daniel (25 USD)
Network Tools Extension by Andres Daniel (Test Extension)
Palette Color Extension by Andres Daniel
Parallax Extension by Andres Daniel (10 USD) - web.archive.org link, Appybuilder community has been closed
QR Image File Decode Extension by Andres Daniel (10 USD) - web.archive.org link, Appybuilder community has been closed
QR Scan Front Camera Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Radar View Extension by Andres Daniel (5 USD) - web.archive.org link, Appybuilder community has been closed
Rating Bar Dialog Extension by Andres Daniel and Carlos Pedroza
Read Contact Extension by Andres Daniel (20 USD)
Read More Label Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Record Audio in mp4 aac format Extension by Andres Daniel (10 USD)
Record Wave File Extension by Andres Daniel (20 USD) - web.archive.org link, Appybuilder community has been closed
Ripple Effect Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
RSA Extension by Andres Daniel (unknown price) - web.archive.org link, Appybuilder community has been closed
Search Actionbar Extension by Andres Daniel
Scan Color Extension by Andres Daniel (12 USD) - web.archive.org link, Appybuilder community has been closed
Scan QR Viewer Extension by Andres Daniel (20 USD) - web.archive.org link, Appybuilder community has been closed
Select Path Grid View Extension by Andres Daniel (20 USD) - web.archive.org link, Appybuilder community has been closed
SFTP Manager Extension by Andres Daniel (20 USD) - web.archive.org link, Appybuilder community has been closed
Showcase Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Sidebar Navigation Extension by Andres Daniel (currently not working in the companion app for Android 10+, see this community thread), see also the Youtube tutorial
Signature Pad Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Snackbar Extension by Andres Daniel
Soundwave View Extension by Andres Daniel
SQlite Extension by Andres Daniel (20 USD)
SQlite Addon Extension by Andres Daniel (precondition: SQlite Extension by Pura Vida Apps)
Swipe Extension by Andres Daniel (10 USD) - web.archive.org link, Appybuilder community has been closed
Switch Extension by Andres Daniel
Table Extension by Andres Daniel (free, for added feature version: 15 USD)
Tabs Extension api < 21 by Andres Daniel
Taps Extension by Andres Daniel, Note: using this extension results in error "Your APK cannot be analysed using aapt" while uploading to Google Play Use the Tabs extension instead!
Taps Swipe Loopup Whatsapp Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Textbox Addon Extension by Andres Daniel to modify the cursor color - web.archive.org link, Appybuilder community has been closed
Toast with X Y values Extension by Andres Daniel
Tool Time Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Tool Tip Extension by Andres Daniel (10 USD)
UDP client Extension by Andres Daniel
UDP server Extension by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Vertical Scroll Arrangement AddOn Extension by Andres Daniel
View Pager Extension by Andres Daniel (25 USD) - web.archive.org link, Appybuilder community has been closed
Web Addon Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Web Extension Easy Upload File PHP by Andres Daniel (15 USD) - web.archive.org link, Appybuilder community has been closed
Web Socket Client Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Wheel View Client Extension by Andres Daniel
WordpressDB Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Youtube Extension by Andres Daniel - web.archive.org link, Appybuilder community has been closed
Youtube Extension (paid) by Andres Daniel (15 USD)

10. Sander - sanderjochems.com

Note: Sander does not provide these extensions anymore, because those have been added as components into Kodular.

Bluetooth Plus Extension by Sander
Screen Tools Extension by Sander
Vibrate Extension by Sander
Convert Extension by Sander (Test Extension)
Soundmanager Extension by Sander

11. Luke Gackle

Countdown Extension by LukeGackle
to provide a variety of methods for getting the duration between two dates.
Webview Tools Extension Version 8 by LukeGackle
WebViewCookieTools Extension by LukeGackle
JSON Tools Extension by LukeGackle
Google Places Extension by LukeGackle

12. ILoveThunkable aka Ben aka Moliata

Simple Tools Extension by Ben (Test Extension)
Image Cropping Extension by Ben (10 USD)
WebViewerDialog Extension by Ben
Extended WebViewer Extension by Ben and Sivagiri_Visakan
System Alert Window Extension by Ben (10 USD)
FileChooser Extension by Ben (10 USD) - web.archive.org link, Appybuilder community has been closed
Image Print Extension by Ben
Dynamic Style Extension (for webviewer) by Ben (10 USD) - web.archive.org link, Appybuilder community has been closed
Card View Extension by Ben
Kawa Scheme Extension by Ben - web.archive.org link, Appybuilder community has been closed
Chat Interface Extension by Ben (10 USD) - web.archive.org link, Appybuilder community has been closed
Particles Extension by Ben (10 USD) - web.archive.org link, Appybuilder community has been closed
Ad Colony Extension by Ben (10 USD) - web.archive.org link, Appybuilder community has been closed

13. Juan Antonio - kio4.com

Simple Web Server Extension by Juan Antonio
Delete characters from a text Extension by Juan Antonio
Get all TinyDB Extension by Juan Antonio to backup TinyDB as Text or JSON format
Convert integer value to words Extension by Juan Antonio
TinyDBX Extension by Juan Antonio to use several TinyDBs in an app
Terminal / Shell Extension by Juan Antonio
File Explorer Extension (Version 3) by Juan Antonio for Android versions < Android 7, see also here.
Tone Generator Extension by Juan Antonio
Image Picker Extension by Juan Antonio to pick more than 10 images
Note: also the activity starter solution is able to do this, no need for an extension...
Telefono Datos Extension by Juan Antonio
Textbox Extension by Juan Antonio
Label and Image Click Extension by Juan Antonio
Multitouch Extension by Juan Antonio
Multitouch in Canvas Extension by Juan Antonio
Gradient in a Layout Extension by Juan Antonio
Extension: Create Buttons, Labels, TextBoxes, Sliders by code by Juan Antonio
Extension: Animated Gif Clickable (old version) by Juan Antonio
Gif animated Extension. Clickable. Transparent Background by Juan Antonio
For Each Loops Extension by Juan Antonio
Notification Extension by Juan Antonio
Get Source code of webpage Extension by Juan Antonio
Small Camera Extension by Juan Antonio to save the taken picture in a directory of your choice
Install App Extension by Juan Antonio, for version 3 see here.
Extension to get all WiFi IP of a local net by Juan Antonio
Extension to get Date and Time from a NTP server by Juan Antonio
Extension: Create WebViewer by code, Zoom etc. by Juan Antonio
Extension to zoom, rotate, drag an image by Juan Antonio (7 USD)
Another Whatsapp Extension by Juan Antonio
Extension: Create TextBox by code. Set and Get text by Juan Antonio
Get microphone sound level Extension by Juan Antonio
Get frequency tone microphone Extension by Juan Antonio
Gzip and Zip Extension by Juan Antonio
Create Animated Gif Extension by Juan Antonio
Create Pdf file Extension, Layout to Pdf by Juan Antonio
LocationSensor Extension. Accuracy. Geocoder. GeomagneticField by Juan Antonio
NMEA Extension to get location/NMEA data ($GNGGA and $GPGGA) by Juan Antonio
TinyWebDB with PHP and Extension to Encrypt data by Juan Antonio
Slider vertical and Slider with 2 ranges Extension by Juan Antonio
Custom Keyboard Extension by Juan Antonio
Drag Layout, Rotate, Set Position, Drag Component Extension by Juan Antonio
TransportNet Extension by Juan Antonio to check if the data transport comes via WiFi or Cellular
Base64 Extension by Juan Antonio
JSON Decode JSON Path Extension by Juan Antonio to get the value easily
2021-11 Dynamic Graph, Shift left graph, Sinusoidal wave Extension by Juan Antonio

14. Jerin Jacob

15. ColinTree - github.com/OpenSourceAIX

System Language Extension by ColinTree, a very simple extension to get the system language
Notifier Extension by ColinTree, a very simple extension to display an Android notifier
Math Extended Extension by ColinTree provides a few math operations
Math Extension by ColinTree (a copy of the math extended extension with shortened function names)
IMEI Extension by ColinTree, a very simple extension to provide the IMEI
Go Home Extension by ColinTree, a very simple extension to move the current app to the background
First Run Extension by ColinTree (Test Extension)
TinyDB Editable Extension by ColinTree
Scroll Arrangement Handler Extension (V2) by ColinTree
Nine Patch Support Extension by ColinTree
Slideshow/Carousel Extension (Version 2) by ColinTree
Asynchronous Image Loader Extension by ColinTree
Password Visibility Switching Extension by ColinTree
Autocomplete Textbox Extension by ColinTree
Swipe Refresh Extension by ColinTree
Event Caller Extension (in Test) by ColinTree
Custom Listview Extension by ColinTree
JSON Utils Extension by ColinTree

16. Mirxtrem Apps

Firebase Authentication Extension V3 by Mirxtrem Apps
Facebook Login Extension by Mirxtrem Apps
Firebase Storage Extension (Version 2) by Mirxtrem Apps

17. Red Panda - redpandablog.tk

Wolfram Alpha Extension by Red Panda
I18n - Localization Extension by Red Panda (What means I18n?)
Distance Tools Extension by Red Panda
File Alt Extension by Red Panda
TinyDB Tools Extension by Red Panda
Tone Generator Extension by Red Panda
App Inventor Essentials Extension by Red Panda (Beta)

18. Jonny Steyver Arroyo Quiroga - mitextensions.esy.es

Note: To be able to get some of these extensions, you have to pay in MitCoins (a virtual currency of that webpage)

API Mail Extension by Jonny. The extension uses mitextensions.esy.es to send the email via php. - web.archive.org link, Appybuilder community has been closed
Codification Plus Extension by Jonny to get different hash values - web.archive.org link, Appybuilder community has been closed
Google Login Extension by Jonny (paid) - web.archive.org link, Appybuilder community has been closed
Fusiontable Addons Plus Extension by Jonny (paid) - web.archive.org link, Appybuilder community has been closed
Sidebar Extension by Jonny (paid) - web.archive.org link, Appybuilder community has been closed

19. Said Dev - https://www.aix-extensions.fr

Custom Toast (including Picture) Extension by Said Dev (5 USD)
Gif View Extension by Said Dev
Launch my app Extension by Said Dev (10 USD)
Flipcard Extension by Said Dev (5 EUR)
Slide Image on Background Extension by Said Dev (10 EUR)
Circle Menu Extension (Preview) by Said Dev
Switch Button Extension by Said Dev (5 EUR)
Progress Bar with number Extension by Said Dev (6 EUR)
Side Menu Extension by Said Dev (16 EUR)
Mod Calendar Extension (new update 3/APR/19) by Said Dev (16 EUR) - web.archive.org link, Appybuilder community has been closed
M3U8 Player Extension by Said Dev (10 EUR)
Vimeo Daily Motion Player Extension by Said Dev (16 EUR)
Badge Button Extension by Said Dev (5 EUR)
Internet Connection Check Extension by Said Dev
Filter Bar Extension by Said Dev (11 EUR)
Beautiful SideMenu Extension by Said Dev (16 EUR)
ShowCaseView Extension (including HTML text) by Said Dev (10 EUR)
Popup Menu Extension (update March 19) by Said Dev (10 EUR) - web.archive.org link, Appybuilder community has been closed
Various Grid 3 in one Extension by Said Dev (16 EUR)
Zoom Image Pro Extension by Said Dev (3 EUR)
Stripe Payment Extension by Said Dev (price not yet decided)
Extension to check, if app runs in background by Said Dev (3 USD)
Cool Dialog Extension by Said Dev (10 USD)
Slide Menu Drawer 4 Side Extension by Said Dev (11 EUR)
Image Slider 3D Extension (Preview) by Said Dev (price not yet available)
Bouncing Menu Extension (Preview) by Said Dev (price not yet available)
Shrunken Menu Extension by Said Dev (12 EUR)
Read Excel File Extension by Said Dev (5 EUR)
Planet Game Extension (Preview) by Said Dev (price not yet available)
Rubik's cube Extension by Said Dev (20 EUR)
Reduce Menu Extension by Said Dev (12 EUR)
Need Permission Extension (API Level >= 23) by Said Dev (3 EUR)
Drawing View Extension by Said Dev (20 EUR)
Pdf Viewer Extension by Said Dev (10 EUR)
Paypal Extension by Said Dev (50 USD)
HLS Video Player Extension by Said Dev (25 EUR)
Custom SeekBarView Extension by Said Dev (10 EUR)
File Chooser Extension by Said Dev (10 EUR) - web.archive.org link, Appybuilder community has been closed
Pattern View Extension by Said Dev (15 EUR) - web.archive.org link, Appybuilder community has been closed

20. Carlos Pedroza

Decode Polyline Extension by Carlos Pedroza
SQlite Extension by Carlos Pedroza
Thumbnail Extension by Carlos Pedroza
Firebase Addon Extension (to be sponsored) by Carlos Pedroza - web.archive.org link, Appybuilder community has been closed
Glide Extension (to be sponsored) by Carlos Pedroza to load an image from an URL - web.archive.org link, Appybuilder community has been closed
Circular Progress Extension) by Carlos Pedroza - web.archive.org link, Appybuilder community has been closed
Tick View Extension by Carlos Pedroza - web.archive.org link, Appybuilder community has been closed
Icon App Badge Extension by Carlos Pedroza

21. Tiziano1960

FinFunctions Extension by Tiziano1960 for some financial calculations
Another AES Encryption Extension by Tiziano1960
Important Note: Before thinking about using this extension, you should first read this.
Get the right size Extension by Tiziano1960 (an extension just for fun)
Notification to Status Bar Extension by Tiziano1960 - web.archive.org link, Appybuilder community has been closed
New Improved Notification Extension by Tiziano1960 - web.archive.org link, Appybuilder community has been closed

22. Kus Zab - naritacomp.blogspot.com

Extended Password Textbox Extension by Kus Zab
Listener Extension by Kus Zab
Advance List Extension by Kus Zab (5 USD) - web.archive.org link, Appybuilder community has been closed
File Explorer Extension by Kus Zab (free and 5 USD)
Cover Flow Extension by Kus Zab (15 USD)
Free Image Slider Extension by Kus Zab - web.archive.org link, Appybuilder community has been closed
Extreme Custom Table Extension (Update 2017-12-11) by Kus Zab (10 USD - web.archive.org link, Appybuilder community has been closed)
Hello Chart Extension by Kus Zab (5 USD) - web.archive.org link, Appybuilder community has been closed
Material Drawer (Sidebar) Extension by Kus Zab (10 USD) - web.archive.org link, Appybuilder community has been closed
Grouped List Extension by Kus Zab (15 USD) - web.archive.org link, Appybuilder community has been closed
Dialog Any Extension by Kus Zab (10 USD) - web.archive.org link, Appybuilder community has been closed
View Components AddOn Extension by Kus Zab - web.archive.org link, Appybuilder community has been closed
Icon Component Extension by Kus Zab - web.archive.org link, Appybuilder community has been closed
Infinite Viewpager Extension by Kus Zab (10 USD) - web.archive.org link, Appybuilder community has been closed
Grid Cardview Extension by Kus Zab (16 USD) - web.archive.org link, Appybuilder community has been closed
Stream player (Video and Audio) Extension by Kus Zab (12 USD) - web.archive.org link, Appybuilder community has been closed
Horizontal RecycleView Extension by Kus Zab (15 USD) - web.archive.org link, Appybuilder community has been closed
Textboxing Extension by Kus Zab - web.archive.org link, Appybuilder community has been closed
Own Listview Extension by Kus Zab (20 USD) - web.archive.org link, Appybuilder community has been closed
Facebook Native Ad Extension by Kus Zab (11 USD) - web.archive.org link, Appybuilder community has been closed
Email SMTP Extension by Kus Zab (16 USD) - web.archive.org link, Appybuilder community has been closed
Own Grid Cardview Extension by Kus Zab (22 USD) - web.archive.org link, Appybuilder community has been closed
Exo Player Extension by Kus Zab (25 USD) - web.archive.org link, Appybuilder community has been closed
Own Coverflow Extension by Kus Zab (18 USD) - web.archive.org link, Appybuilder community has been closed

23. crazynsoni

Parse Extension by crazynsoni (Test extension)
String Function Extension by crazynsoni (Test extension)
Get IP Address Extension by crazynsoni (unfortunately link to the extension does not work anymore)

24. Shivendra Kr Sahu

Google Spreadsheet Extension by Shivendra Kr Sahu (5 USD) - web.archive.org link, Appybuilder community has been closed
Super Activity Extension by Shivendra Kr Sahu
Sound Sensor Extension by Shivendra Kr Sahu
PayTm Transaction Extension by Shivendra Kr Sahu (Beta, paid)
Download Invoice Extension by Shivendra Kr Sahu
Leadbolt Ad Monetization Extension by Shivendra Kr Sahu (10 EUR)
WiFi Direct P2P Extension by Shivendra Kr Sahu (35 EUR)
AdColony Rewarded Extension by Shivendra Kr Sahu (to be crowdfunded)
AdColony Interstitial Extension by Shivendra Kr Sahu (10 EUR)
Unity 3D Ads Extension by Shivendra Kr Sahu (to be crowdfunded)
Payment Gateway for Paytm Intent Upi Extension by Shivendra Kr Sahu (INR 500)
Payment Gateway for Upi Extension by Shivendra Kr Sahu (INR 500)
Unit Converter Extension by Shivendra Kr Sahu (1 EUR)

25. Daniel - appinventordaniel.jimdo.com/

ESC/POS bluetooth thermal printer Extension by Daniel (20 USD)
Quick Sort Extension by Daniel (8 EUR)
Object Manager Extension by Daniel (8 EUR)
Barcode Generator Extension by Daniel (price on request)
Bluetooth Connector Extension by Daniel (price on request) for connecting a bluetooth printer
USB Connector Extension by Daniel (price on request) for connecting an USB printer

26. Zhangzqs

Advanced Android Toast Extension by Zhangzqs
Linear Algebra Extension by Zhangzqs
3D Test Extension by Zhangzqs
Entity Keyboard Extension by Zhangzqs to handle keyboard events
Create QR code without network Extension by Zhangzqs
Webviewer Interact Extension by Zhangzqs
Color Picker Extension by Zhangzqs
Textbox/Password Textbox Helper Extension by Zhangzqs
Scene3D Extension,
Augmented Reality Plugin on Scene3D Extension,
Load your 3d file obj, 3ds, asc, md2 and text in Scene3D Extension by Zhangzqs (10 USD)
Image Interceptor Viewer (Cropper) Extension by Zhangzqs
Customize any touchscreen event including any multi touch screen Extension by Zhangzqs
Dialog Any Thing Extension by Zhangzqs
Canvas scale gesture Extension by Zhangzqs

27. Ivan Moreno

Whatsapp Send Message Extension by Ivan Moreno (2 USD)
Amazon Interstitial Ad Extension by Ivan Moreno (20 USD)

28. Ahmad Mtrd

Control Dimmer Extension by Ahmad Mtrd
MP3 duration Extension by Ahmad Mtrd
Button Designer Extension by Ahmad Mtrd
Image Cropping Extension by Ahmad Mtrd
Button Effect Extension by Ahmad Mtrd

29. Ken

Note: The Appybuilder community has been closed.
You now can download the free extensions, which have been published there in this MIT App Inventor thread.

rescued extensions

Notify Extension V2 by Ken
Dynamic Companion (AddOn Extension) for Dynamic Component Extension by Ken
WordsToNumbers Extension by Ken
Font Art Extension by Ken
Advanced Barcode Scanner Extension by Ken
Table View Extension by Ken
Textbox Tools Extension by Ken
Textbox Tools Extension V3 by Ken
Deep Links in a WebViewer Extension by Ken
ClickEvent Extension by Ken to add a click event to a component or arrangement
Disable Screen Capture Extension by Ken
Override URL Extension by Ken
Slider Tools Extension by Ken
Button Focus Extension by Ken
ScrollBar Extension by Ken
Dynamic Companion Extension by Ken
Label Tools Extension by Ken
FingerprintSensor Extension by Ken
DragAndDrop Extension by Ken to Drag and Drop Visible Components (including entire arrangements) into designated arrangements.
YourFont Extension by Ken to use your own custom font

other extensions, probably lost

MediaStyle Notification Extension by Ken (15 USD) - web.archive.org link, Appybuilder community has been closed, updated version by Shreyash, which also works on Android 11
Add Gradient Extension by Ken (5 USD) - web.archive.org link, Appybuilder community has been closed
IP Address Tools Extension by Ken (5 USD) - web.archive.org link, Appybuilder community has been closed
Word Art Extension by Ken (in development) - web.archive.org link, Appybuilder community has been closed
Slider Thumb Color Extension by Ken - web.archive.org link, Appybuilder community has been closed
Line Spacing Extension by Ken - web.archive.org link, Appybuilder community has been closed
Any Bar Extension by Ken (5 USD) - web.archive.org link, Appybuilder community has been closed

30. Deep Host - https://deephost.in/ - Deep Host Youtube channel

Note: To be able to get an extension of this developer, you have to download an app from Google Play. Also it looks like he does not update his website anymore, so unfortunately I can't list new extensions anymore.

Note: The developer is not active in the forum and answers only sometimes to emails...

HTML View Extension by Deep Host, How to do the same without extension see here.
App Badges (App Icon Number Show) Extension by Deep Host
Animation Viewer Extension by Deep Host
App Launcher Extension by Deep Host
Welcome Screen, Image Launcher Screen Extension by Deep Host
Pdf Viewer Extension by Deep Host
Into View Extension by Deep Host
VPN Checker Extension by Deep Host
Countdown Timer Extension by Deep Host
Location Tracker Extension by Deep Host
Online Clock Checker Extension by Deep Host
Apk Installer Extension by Deep Host
Default Browser Extension by Deep Host
Checking Installer Extension by Deep Host
Custom Downloader Extension by Deep Host
In App PDF Viewer Extension by Deep Host
Paytm Extension by Hitesh and Deep Host (100 Rs or 5 USD)
Custom Listview Extension by Hitesh and Deep Host (100 Rs or 5 USD)
GridView Extension by Deep Host
File Picker Extension by Deep Host
Video Player Extension by Deep Host
Image Cropper Extension by Deep Host
Graphic Design Extension by Deep Host
App Shortcuts Extension by Deep Host
Swipe Card View Extension by Deep Host
Sliding Panel Layout Extension by Deep Host
Music Player Extension by Deep Host (price unknown)
Image Drop Extension by Deep Host
Expandable ListView Extension by Deep Host
Text to Audio File Convert Extension by Deep Host
Set Ringtone Extension by Deep Host
Youtube Player Extension by Deep Host (price unknown)
Exo Video Player Extension by Deep Host (price unknown)
Left Right Side Menu Extension by Deep Host
Custom Design ListView Extension by Deep Host (price unknown)
Title ScrollView Extension by Deep Host
MySQL Database Extension by Deep Host
Country Code Picker Extension by Deep Host
Facebook Comments Extension by Deep Host
Search View Extension by Deep Host
Number Picker Extension by Deep Host
ListView with Checkbox Extension by Deep Host
Location Tracker Extension by Deep Host, see also this Kodular thread

31. Nathan - github.com/FlailingOctopus

Chamaeleon, Material Textfield Extension by Nathan
Draco (Flurry Analytics) Extension by Nathan
Device Manager Extension by SquishyOctopus, an extension which offers loads of blocks unfortunately without any documentation...
Discourse Community Extension by Nathan (discontinued)
ClickUtilities Extension by Nathan
Reflex - StatusBar Extension by Nathan
Biometric Extension by Nathan
Purple - Check NFC availability Extension by Nathan
Font Variation Extension by Nathan to change font weight programmatically
Wave Extension by Nathan, an enccrypted TinyDB aka Shared Preferences

32. Aravind Chowdary

Human BMI calculator Extension by Aravind Chowdary (Test extension) - web.archive.org link, Appybuilder community has been closed
Relative Layout Extension by Aravind Chowdary (2 USD) - web.archive.org link, Appybuilder community has been closed
AppNext Ads Extension by Aravind Chowdary and Pavrita (25 USD)
Download AddOn Extension by Aravind Chowdary, 80% of the source code by Andres Cotes

33. Django

GPS/WSG84 to Gauss-Krueger converter Extension by Django
Wav Recorder Extension by Django
Wave Audio Tools Extension (V3) by Django
Vibrate Extension by Django
GPX Tools Extension (V3) by Django
TextToSpeech Record Etension by Django
WavToOgg Etension by Django to encode a wave audio file into an ogg file

34. Apkdeveloper

Mobfox Ads Network Extension by Apkdeveloper (5 EUR)
Various Dialog Extension by Apkdeveloper (5 EUR)
Facebook Rewarded Video Ads Extension by Apkdeveloper (8 USD)

35. wanttobe

OneSignalPlus extension to get Subscription Status and Player ID by wanttobe - web.archive.org link, Appybuilder community has been closed
OneSignalPlus extension to send push to specific player id by wanttobe (donation required) - web.archive.org link, Appybuilder community has been closed
Custom ChatBox extension by wanttobe - web.archive.org link, Appybuilder community has been closed

36. ScorpioNormal

Voice Recognition Extension without Google Dialogue by ScorpioNormal
TextToSpeech with Attributes Extension by ScorpioNormal
System Media Player control Extension by ScorpioNormal
System Media Player Control Extension by ScorpioNormal
Dictionary for Voice Assistant Extension by ScorpioNormal

37. Androteq aka Rachit Singh

Check Online time Extension by Androteq
News List View extension with animation by Androteq (10 USD)

38. App Droid Development

Keep Screen On Extension by App Droid Development
AppyEcho mic to speaker with pitch control Extension by App Droid Development
Return mic amplitude Extension by App Droid Development (Test extension)

39. Marco Tanzi

40. Peter Zhong

Color Extension by Peter Zhong
Security Extension by Peter Zhong to provide hash and encrypt/decrypt methods
Shortcut Extension by Peter Zhong to create shortcuts on the desktop of the Android mobile phone

41. Abhijith Dominic

StartAppAds Extension by Abhijith Dominic
Unity Ads Extension by Abhijith Dominic (5 USD)
ZPlay Ads Extension by Abhijith Dominic (10 USD)
Paytm+ Extension by Abhijith Dominic
Async Procedure Extension by Abhijith Dominic, source code by Evan Patton (MIT)
AppLovin Ads Extension by Abhijith Dominic
Vungle Ads Extension by Abhijith Dominic
Facebook Ads Extension by Abhijith Dominic

42. Cian O'Sullivan

Android ID Extension by Cian
HackProtect Extension by Cian to find out, if a device is rooted or runs in the emulator etc.
Debuger Check Extension (part of the HackProtect extension) by Cian - web.archive.org link, Appybuilder community has been closed
Total Package Count Extension (part of the HackProtect extension) by Cian - web.archive.org link, Appybuilder community has been closed
Environmental Sensors Extension (Ambient Temperatur, Relative Humidity, Barometric Pressure, Light) (part of the HackProtect extension) by Cian
Certificate Tools Extension (part of the HackProtect extension) by Cian provides three different certificate analysis functions on you APK to make sure it has not been cloned, patched, or hacked and resigned - web.archive.org link, Appybuilder community has been closed
Astronomy Extension by Cian
Moon Phase Extension by Cian
True Sunrise Sunset Calculator Extension by Cian - web.archive.org link, Appybuilder community has been closed
Prime Number Generator Extension by Cian - web.archive.org link, Appybuilder community has been closed
Warp Speed to Light Speed Extension by Cian (fun extension) - web.archive.org link, Appybuilder community has been closed
What Timezone Extension by Cian
Async Pause Magic Extension by Cian (another Wait Extension)
Please understand The model of event processing in App Inventor and its distributions before trying to use this extension... You might find out, that you not really need it... Why is a wait procedure generally a bad idea?

43. Gobhi Vines

Simple Maths Extension by Gobhi Vines (test extension)
Random Digit Extension by Gobhi Vines to return a 6 digit random number (test extension)

44. Souvik Bera

Note: Unfortunately Souvik Bera removed all threads about his extensions in the Kodular community.

Get Location Details Extension by Souvik Bera
Social Media Tools Extensio by Souvik Bera
Email SMTP Extension by Souvik Bera
Custom Listview Extension by Souvik Bera (5 USD)

45. Yusuf Cihan

APK Info Extension by Yusuf Cihan
List AddOn Extension by Yusuf Cihan
AsteroidDB Extension by Yusuf Cihan, AsteroidDB is based on TinyWebDB
Dynamic Arrangements Extension by Yusuf Cihan (only for Kodular); DISCONTNUED! Please use the Dynamic Components Extension instead, see below!
Dynamic Components Extension (for all App Inventor components) by Yusuf Cihan
ZipFile Extension by Yusuf Cihan to read zip contents without exracting

46. Andre Castro

SSH Client Extension by Andre Castro, Github respository
Simple TCP Client Extension by Andre Castro, Github respository
ThingSpeak Extension by Andre Castro, Github respository

47. cttricks aka Tanish Raj

Go Social Extension by cttricks
Temperature Converter Extension by cttricks (test extension)
Email Otp Verification Extension by cttricks (3 USD)
Chat View Extension by help_cttricks
Math Quiz Extension by help_cttricks
Toast Extension by help_cttricks
SpreadsheetDB Extension by help_cttricks
Cloudsheets - Spreadsheets Extension by help_cttricks
Get Location Info Via Latitude and Longitude Extension by help_cttricks
Convert Number 2 Words Extension by help_cttricks
Pictodrive Extension to upload images to Google Drive by help_cttricks and Techy Bro
Custom Floating Button Extension by help_cttricks
SMP Downloader Extension to download social media posts by help_cttricks (2.50 USD)
V8-Engine - Google Apps Script Extension by help_cttricks
xTinyDB Extension by help_cttricks, an open source TinyWebDB alternative

48. vknow360 aka Sunny Gupta

DistanceCalc Extension: Calculate distance between two places using the Haversine formula by vknow360
FileTools Extension by vknow360
DateTools Extension by vknow360
Way2Sms Extension by vknow360
PkgUtils Extension by vknow360, some tools to work with Package
Extension to read and create QR code offline by vknow360
Asymmetric Cryptography Extension by vknow360
Custom WebView Extension by vknow360
Net Extension by vknow360 to get some information about network
EFile Extension by vknow360, this is a copy of the MIT App Inventor file component, without requesting permissions
HtmUtils Extension by vknow360, an utils extension to work with HTML
ScreenRecorder Extension by vknow360
VideoUtil Extension by vknow360 to get some information from a video including thumbnail
Extension to add Deep Link support by vknow360, just add your desired scheme and host and build your individual extension
ScrollHandler Extension by vknow360 to handle the scroll of scroll views
Filey Extension by vknow360 to Encode and Decode Files
BT. An extension to work with Bluetooth by vknow360
LogReader Extension by vknow360 as alternative for logcat to debug a project
SmtpCLient Extension by vknow360 to send emails using SMTP server
Hide/Sow System UI Extension by vknow360
Picasso Extension by vknow360 to load images with Picasso
FTPClient Extension by vknow360 (5 USD) to communicate to remote server
Contacts Saver Extension by vknow360 to add contacts to phone without opening Contacts app
SFTP Client Extension by vknow360 (6 USD) to use SSHv2
Volume Events Extension by vknow360 to listen to volume change events
Cloudinary Extension by vknow360 to upload files to Cloudinary
StorageUtils Extension by vknow360
IMAP Client Extension by vknow360 (6 USD) to read emails from IMAP server
Image Capture Extension by vknow360 including Cancel option
Calendar View Extension by vknow360 to make simple calendar views
Flipper View Extension by vknow360 to flip the views
VerticalViewPager Extension by vknow360
Google Drive Extension by vknow360 (8 USD)
Google Drive Extension (Extended version) by vknow360 (15 USD)
Byte Operations Extension by vknow360
SAF Extension by vknow360 to use the Storage Access Framework
SmsAppTools Extension by vknow360 to enable app as default SMS app

49. krishjha07

Math Extension by Krish_Jha_jha (Test extension) - web.archive.org link, Appybuilder community has been closed
Codey Play With Codes Extension by krishjha07
TimeTools Extension by krishjha07
Custom Toast Extension by krishjha07

50. wangsk789 aka Kevin Kun

Regular Expression Extension by kevinkun
SocketIO Client Extension by kevinkun (10 USD)
Contacts Extension by kevinkun
AgoraRTC Extension by kevinkun, realtime communication with voice and/or video (10 USD)
Airtable Extension by kevinkun including filter condition
Enhance Extension by kevinkun, which is able to create stylish card views
Pdfviewer Extension by kevinkun (5 USD) made with webview and pdf.js
UUID Generate Extension by kevinkun
DCLite Extension by kevinkun, lite version of Dynamic Components Extension
WheelView Extension by kevinkun, an extension like number picker, but can be any string

51. DeveloperLeo aka Utkarsh

Contact Extension by DeveloperLeo to get all the contacts in a list
Create PDF Extension Text to PDF | HTML to PDF | Webpage to PDF by Hitesh and DeveloperLeo (100 Rs or 5 USD)
PayTM Gateway Extension by DeveloperLeo (499 Rs)
ProfileView Extension by DeveloperLeo to create Circular Image with Icon
PayU Extension by DeveloperLeo (Rs 299)

52. Cristopher Salazar

Custom Listview Extension by Cristopher Salazar (2 USD) - web.archive.org link, Appybuilder community has been closed
Custom RecyclerView Extension by Cristopher Salazar (10 USD) - web.archive.org link, Appybuilder community has been closed
Custom Listview - Recyclerview UI Extension by Cristopher Salazar (4 USD)
Bottom App Bar Extension by Cristopher Salazar (Note: does not work in MIT App Inventor)
RecyclerView Extension by Cristopher Salazar (14 USD)
Advanced List Filter Extension by Cristopher Salazar
Take Screenshot Extension of a component by Cristopher Salazar
Fancy RecyclerView Extension + ViewPager Effect by Cristopher Salazar

53. Vedang

Thumbnail Tools Extension by Vedang
Google Search Extension by Vedang (Test extension)
Easy Maths Extension by Vedang (Test extension)
NumConvert Extension by Vedang (Test extension including source code, which shows you, how NOT to do it)
Country Flags Extension by Vedang
Random Password Generator Extension by Vedang (discontinued)
Url Validate - isUrl? Extension by Vedang
Number Quiz Extension by Vedang
Password Utils Extension by Vedang
NumConvert Extension by Vedang
ClickTools Extension by Vedang to Add Click Events To Arrangements And Components
Linkify Extension by Vedang to detect links
InstaInfo Extension by Vedang to get Instagram user information
Happy Toggle Button Extension by Vedang
Advanced Circular Progress View and Circular Slider Extension by Vedang (4 USD)
Mixpanel Analytics Extension by Vedang

54. avmcreators02

Newspaper Extension by avmcreators02, which provides the names, icons and links of 132 newspapers in 12 languages
Time and Numbers Conversion Extension by avmcreators02
All Media Download Extension by avmcreators02 (4 USD)
InstaPro Extension by avmcreators02 (1 USD) to get Instagram user information
YoutubeDataview Extension by avmcreators02 (6 USD) by using Youtube Data API
Extension to convert UTM to Degree(latitude/longitude) and Degree to UTM by avmcreators02
AvLoader Extension by avmcreators02 to provide loading animations

55. Preet_Vadaliya

SVG Image Loader Extension by Preet_Vadaliya
Accelerate-Decelerate Animation Extension by Preet_Vadaliya
Profile Generator Extension by Preet_Vadaliya
Chess View Extension by Preet_Vadaliya
Notification Badge Extension by Preet_Vadaliya
HTML Text Extension by Preet_Vadaliya
Language Detector Extension by Preet_Vadaliya

56. BodyMindPower aka Anke

Quadratic Equation Extension by BodyMindPower (test extension)
Time Format Extension by BodyMindPower to format the time / duration to [HH:mm:ss] and [days + HH:mm:ss]
Extension to Install APK from app-specific directory (ASD) by BodyMindPower (for App Inventor)
Extension to Install APK from app-specific directory (ASD) by BodyMindPower (for Kodular)
ActivityLifecycle of an app Extension by BodyMindPower
Get API Level of the device Extension by BodyMindPower
Get the path of the ASD (application specific directory) Extension by BodyMindPower
MyFont, a modification of Ken's YourFont Extension by BodyMindPower to use your own custom font, which also works with the Companion (on devices with Android > 9) since the AI2 nb184 release
Extension to download a file to ASD without WRITE permission by BodyMindPower (for App Inventor)
Extension to download a file to ASD without WRITE permission by BodyMindPower (for Kodular)
Extension to check, if device is in idle/sleep mode (screen off) by BodyMindPower
Remove app from recent apps Extension by BodyMindPower
Extension to get Device Metrics, Display Metrics, Resolution, Density, Font scaling by BodyMindPower
Extension to add MANAGE_EXTERNAL_STORAGE permission into the manifest by BodyMindPower

57. Amit_Narwal

Video / Voice Calling Extension by Amit_Narwal (15 USD)
Overlap Extension by Amit_Narwal (10 USD)

58. jarlissonlira2

List Permission Extension by jarlissonlira2
Notification Style Extension by jarlissonlira2 with various types of notifications
Floating View Extension by jarlissonlira2 to float your component
Firestore scalable database Extension by jarlissonlira2
Push Notification Extension by jarlissonlira2 to receive notification through onesignal
CPF Validator Extension by jarlissonlira2 to help Brazilians to check if the CPF is valid.
Paypal Extension by jarlissonlira2 to make payments in your app

59. Mateja aka ontstudios

Search Engine Extension by ontstudios (test extension)
Random Project Name Generator Extension by ontstudios

60. DevYB aka Ayoub Mounchid

reCaptcha Extension by DevYB to protect app from malicious traffic (works only in Kodular)
Image Loader Extension by DevYB for image loading and caching
Popup Menu Extension by DevYB
Remove app from recent Extension by DevYB
Image Compressor Extension by DevYB
Google Translate Extension by DevYB
QR Logo Extension by DevYB to generate QR Code with your logo

61. Atom_Developer - atomdeveloper.com aka Krish

See the announcement from @Atom_Developer: I plan to discontinue extension development but anyone can contact me if they want any of the Free extensions. Also all links below to the Kodular community are dead. Unfortunately a lot of information seems to be lost now. You might want to try to contact the developer here atomdeveloper.com.

Free Extensions
The free extensions have been republished here in the MIT App Inventor community.

Fill Form Extension by Atom_Developer - this Kodular link is dead, you can find the extension here
Floating Action View: Customized Version Of A FAB Extension by Atom_Developer - this Kodular link is dead, you can find the extension here and in the Niotron community here
GetApk Extension by Atom_Developer to get the apk file path by the app's package name - this Kodular link is dead, you can find the extension here
Glide Image Loader Extension by Atom_Developer, Load Images Fast With Cache (Gif Supported) - this Kodular link is dead, you can find the extension here
ListFinder Extension by Atom_Developer to find items in a list - this Kodular link is dead, you can find the extension here
Persistent Counter Extension by Atom_Developer - this Kodular link is dead, you can find the extension here
Splash Extension by Atom_Developer - this Kodular link is dead, you can find the extension here
CallNumber Extension by Atom_Developer to call any number without asking for unnecessary permissions - this Kodular link is dead, you can find the extension here
Counter Extension by Atom_Developer - this Kodular link is dead, see the announcement above
CropView Extension by Atom_Developer to crop Image View With Customizations - this Kodular link is dead, you can find the extension here
ExtendedDownloader Extension by Atom_Developer - this Kodular link is dead, you can find the extension here
System Launcher Extension by Atom_Developer - App Inventor link still working
Manifest Extension by Atom_Developer to add manifest elements to your app manifest (Generator) - this Kodular link is dead, you can find the extension here
ViewAddon Extension by Atom_Developer - this Kodular link is dead, see the announcement above
Google Translate Extension by Atom_Developer - this Kodular link is dead, see the announcement above
TinyDB Backup Extension by Atom_Developer - this Kodular link is dead, see the announcement above

Paid Extensions

PopupWindow Extension by Atom_Developer (6 USD) - this Kodular link is dead, see the announcement above
VideoBAckground Extension by Atom_Developer (12.5 USD) to set layout background as video - this Kodular link is dead, see the announcement above
Wifi P2P Extension by Atom_Developer (17.5 USD) to share files or any data over WiFi Direct - this Kodular link is dead, see the announcement above
Customizable Image Slider Extension with Cache System by Atom_Developer (10 USD) - this Kodular link is dead, see the announcement above
Paypal Extension by Atom_Developer (17.50 USD), DISCONTINUED - this Kodular link is dead, see the announcement above
TensorFlow Lite ImageRecognizer Extension by Atom_Developer (17.50 USD) - this Kodular link is dead, see the announcement above
Line Chart Extension by Atom_Developer (12.50 USD) - this Kodular link is dead, see the announcement above
BackgroundTasks Extension by Atom_Developer (25 USD) - this Kodular link is dead, see the announcement above
Circular Progress Extension by Atom_Developer (10 USD) - this Kodular link is dead, see the announcement above
Face Recognition (Verification) Extension by Atom_Developer (17.50 USD) - this Kodular link is dead, see the announcement above
Voice Recognition (Verification) Extension by Atom_Developer (12.50 USD) - this Kodular link is dead, see the announcement above
MediaCamera Extension by Atom_Developer (12.50 USD) to record video in Custom Layout - this Kodular link is dead, see the announcement above
Video Editor Extension by Atom_Developer (17.50 USD) - this Kodular link is dead, see the announcement above
Dice View Extension by Atom_Developer (12.50 USD) - this Kodular link is dead, see the announcement above
Polygon Area Calculator Extension by Atom_Developer (12.50 USD) to caluclate Polygon Area and Perimeter with Coordinates - this Kodular link is dead, see the announcement above
Custom Marker Extension For Google Maps by Atom_Developer (15 USD) - this Kodular link is dead, see the announcement above
Polygon Extension For Google Maps by Atom_Developer (15 USD) - this Kodular link is dead, see the announcement above
Google Text To Speech Extension by Atom_Developer (17.50 USD) - this Kodular link is dead, see the announcement above
RecyclerView Extension by Atom_Developer (17.50 USD) - this Kodular link is dead, see the announcement above
DraggableStickerView Extension by Atom_Developer (12.50 USD) to make any draggable, flippable, resizeable, rotateable, deletable image or text anywhere in your your app - this Kodular link is dead, see the announcement above
Alarm Manager Extension by Atom_Developer (17.50 USD) to open app on given time - this Kodular link is dead, see the announcement above
Shimmer Extension by Atom_Developer (12.50 USD) to set placeholder for loading views - this Kodular link is dead, see the announcement above
Carousel View Extension by Atom_Developer (17.50 USD) to create endlessly repeating carousel - this Kodular link is dead, see the announcement above
Fancy Dialog Extension by Atom_Developer (12.50 USD) to show dialog with animations and other customizations - this Kodular link is dead, see the announcement above
Component Slider Extension by Atom_Developer (12.50 USD) with Many Animations And Indicator - this Kodular link is dead, see the announcement above
Save Contact Extension by Atom_Developer (15 USD) to save contacts automatically - this Kodular link is dead, see the announcement above
MySQL Extension by Atom_Developer (17.50 USD) to call Sql Operations Without Script - this Kodular link is dead, see the announcement above
ImageEditor/Utils Extension by Atom_Developer (17.50 USD) to Modify Or Get Image Properties - this Kodular link is dead, see the announcement above
ShowCaseView Extension by Atom_Developer (17.50 USD) with custom sizing - this Kodular link is dead, see the announcement above
Firebase Cloud Messaging Extension by Atom_Developer (17.50 USD) - this Kodular link is dead, see the announcement above
Vertical ViewPager Extension by Atom_Developer (15 USD) - this Kodular link is dead, see the announcement above
Firebase ML Kit Text Recognizer (OCR) Extension by Atom_Developer (17.50 USD) - this Kodular link is dead, see the announcement above
TabLayout Addon Extension for TabLayout (Kodular only) by Atom_Developer (8 USD) - this Kodular link is dead, see the announcement above

62. fahadboss10

Math Extension by fahadboss10 (Test extension)
CountryInfo Extension by fahadboss10

63. memopolis aka Guillermo Vidal - openqbit.com

Mini Blockly Chain extensions by Open Qbit: OpenQbitAESEncryption, OpenQbitAESDecryption, OpenQbitAEStoString, OpenQbitEncDecData, OpenQbitFileHash, OpenQbitRSA, OpenQbitSSHClient, OpenQbitStringHash, OpenSQLite, OpenQbitBlock extensions. Mini BlocklyChain is a fully functional blockchain is a technology developed for Android mobile phones that will be the nodes that will perform in sending and receiving transactions.
QRNG - Quantum Random Number Generator Extension by Open Qbit
Extension P2P for WiFi and Direct Internet support IP static and Dynamic, NAT, routers, etc by Open Qbit
Extension for security encryption and decryption for files and messages with MiniPQC (Post-Quantum Cryptography) by Open Qbit
Ethereum Extension by Open Qbit for transaction with crypto currency Ethereum

64. Flag_Dz

Game Analytics Extension by Flag_Dz
Advanced app crash Extension by Flag_Dz
Play Install Referrer Extension by Flag_Dz

65. Robert

FileInfo Extension by Robert to get some information about files and folders, e.g. modified date
Wait Extension by Robert
Please understand The model of event processing in App Inventor and its distributions before trying to use this extension... You might find out, that you not really need it... Why is a wait procedure generally a bad idea?

66. varsha

67. Srrazmi

Note: It seems to be, this developer is only interested in himself, unfortunately he does not care about any naming conventions.

Youtube Video Thumbnail Extension by Srrazmi
Cloudinary Video Editor Extension by Srrazmi,
Note: You can do this easily without extension, see here how to do it. Thank you topgatgets
Paid Mobile DTH Recharge Electricity Gas Bill Payment Extension for India by Srrazmi (1.50 USD),
Note: the API which is used in this extension does not seem to have a good reputation, for details see here. Thank you Sonam_Gupta!
Responsive Text Components Maker Extension by Srrazmi
Mobile DTH Recharge Electricity Gas Bill Payment For India Extension by Srrazmi (1.50 USD)
Add Any World After Enter Press By Enter Replacer Extension by Srrazmi (Test Extension)
And Another Math Extension by Srrazmi (Test Extension)
Hex to Int color conversion Extension by Srrazmi

68. Automate_MyProject aka Hema Srinivas

Update My App Extension by Automate_MyProject
Delay Handler Extension by Automate_MyProject
InternetConnection Extension by Automate_MyProject

69. Mohamed_Tamer

AddressInfo Extension by Mohamed_Tamer, some calculations about address
ComponentTools Extension by Mohamed_Tamer, to get and set some components features, move the component and reposition it, etc.
Repositioning Tools Extension by Mohamed_Tamer, to drag components anywhere on the screen
Phone Number Tools Extension by Mohamed_Tamer, to do some calculations with phone numbers, get contact names,images,and phone numbers list in order.
Json To Dictionary Extension by Mohamed_Tamer
Custom Spotlight Extension by Mohamed_Tamer
Brightness Extension by Mohamed_Tamer

70. Arslan_Prince

Jazzcash Extension by Arslan_Prince (25 USD)
Easypaisa payment gateway Extension by Arslan_Prince (25 USD)

71. Xoma Kumaraswamy

Binary Converter Extension by Kumaraswamy_B.G (Test Extension, discontinued)
Wait Tool Extension by Kumaraswamy_B.G (Test Extension)
Please understand The model of event processing in App Inventor and its distributions before trying to use this extension... You might find out, that you not really need it... Why is a wait procedure generally a bad idea?
AndroidTools Extension by Kumaraswamy_B.G
Get Wallpaper Extension by Kumaraswamy_B.G
Text Converter Extension by Kumaraswamy_B.G
Get high resolution favicon images Extension by Kumaraswamy_B.G
SoundManager Extension by Kumaraswamy_B.G to manage the sound of the device
DecimalToText and TextToDecimal Extension by Kumaraswamy_B.G
AdvancedCalculator Extension by Kumaraswamy_B.G (Test Extension) which is able to calculate the sum from a given input
NaturalEval Extension by Kumaraswamy_B.G
Send message/documents via Bluetooth Extension by Kumaraswamy_B.G
iMGY Extension by Kumaraswamy_B.G to encode anything into images and back again (fun extension)
Cache Manager Extension by Kumaraswamy_B.G to save data to the cache memory
Shortcut Tool Extension by Kumaraswamy_B.G to create shortcuts which opens an activity like Screen or URL
Pro Camerea Extension by Kumaraswamy_B.G
Jelly Toggle, Animated Toggle Button Extension by Kumaraswamy_B.G
Image Optimzer Extension by Kumaraswamy_B.G to optimize images and reduce its size
Shadow Layout Extension by Kumaraswamy_B.G and aditya_chaturvedi to apply elevation to an arrangement
WiFi Transfer Extension by Kumaraswamy_B.G, WiFi Peer to Peer Text and File transfer
Extension to hide text messages in audio file by Kumaraswamy_B.G
Background Tasks Extension by Kumaraswamy_B.G to run app in the background, Kodular version see here.
Label Text Highlighter Extension by Kumaraswamy_B.G
Bubble Picer Extension by Kumaraswamy_B.G with Smooth Animation
Activity & Lock Listener Extension by Kumaraswamy_B.G
Image Converter Extension by Kumaraswamy_B.G to convert format from jpg to png
3d Model Loader Extension by Kumaraswamy_B.G

72. WatermelonIce

Max/Min Value of List Extension by WatermelonIce
Dynamic Variables Extension by WatermelonIce. Note from the author: You can totally achieve these by dictionary.
BrightnessTools Extension by WatermelonIce
SliderTools Extension by WatermelonIce
Extract image frame from video Extension by WatermelonIce

73. Matanel325 aka Matanel Shmailov

Math Extension by Matanel325 (Test Extension)
Tools Extension by Matanel325 (Test Extension)
NFC Helper Extension by Matanel325

74. techhamara91

Salary Calculator Extension by techhamara91 (Test Extension)
GST Calculator Extension by techhamara91
ImageBlur Extension by techhamara91
TextAnimation Extension by techhamara91
LottieView Extension by techhamara91

75. airD

ArrangementManagement Extension by airD
SocketIOClient Extension by airD (2 USD)

76. hemantadahaloficial aka Hemanta Dahal aka im_neodeveloper

Unlock Key Extension by hemantadahaloficial. Note: make sure to trust this service before using it.
MightySecurity Extension by hemantadahaloficial. Note: your data will be sent to a server. You have to trust that your data will not be stored there.
TinyDB Secured Extension by hemantadahaloficial (150 INR)
MySQL Database Extension by im_neodeveloper (500 INR)

77. aditya_chaturvedi

Cloudsheets Extension by aditya_chaturvedi (3 USD)
Cloudsheets Tools Extension by aditya_chaturvedi (free or 12 USD for a faster version)
Cloudstreets Extension by aditya_chaturvedi to open Google Maps with defined parameters
LayoutSheet Extension by aditya_chaturvedi and VSATISH13

78. sonumohammad333

ViewTools Extension by sonumohammad333 to get information about visible components.
SimpleDelay Extension by sonumohammad333 (Test Extension, not really useful)
Please understand The model of event processing in App Inventor and its distributions before trying to use this extension... You might find out, that you not really need it... Why is a wait procedure generally a bad idea?
App Settings Extension by sonumohammad333 to open the app manager settings of an app
InApp Review Extension by sonumohammad333

79. JEWEL aka Jewel Shikder Jony

This user has been suspended from the Kodular community. Unfortunately all Kodular links therefore are lost.

Kodular links

API Encoder Extension by JEWEL (1.18 USD) - user has been suspended, link is dead
Make your app responsive Extension by JEWEL (1.18 USD) - user has been suspended, link is dead
Find Multiple List Item [List Addons] Extension by JEWEL - user has been suspended, link is dead
Search List Extension by JEWEL - user has been suspended, link is dead
SortList Extension by JEWEL - user has been suspended, link is dead
VPN Detector Extension by JEWEL (5.55 USD) - user has been suspended, link is dead
Bulk SMS Sender Extension by JEWEL to send bulk sms from your app - user has been suspended, link is dead
Youtube Analysis Extension by JEWEL - user has been suspended, link is dead
Card Validator Extension by JEWEL to determine card type and number - user has been suspended, link is dead
Image Compressor - Image Resizer Extension by JEWEL - user has been suspended, link is dead
File Picker Extension by JEWEL - user has been suspended, link is dead
Video Compressor Extension by JEWEL - user has been suspended, link is dead
Storage Converter Extension by JEWEL to convert Byte to KB, MB, BG - user has been suspended, link is dead

App Inventor links

Note: It has been reported, that this extension developer takes the money but does not send the extension!

80. Salman_Dev

WhatsAppTool Extension by Salman_Dev to send WhatsApp messages
StatusBarTools Extension by Salman_Dev
OriginalToast Extension by Salman_Dev
FocusTools Extension by Salman_Dev to request focus for a component
HTML Format Extension by Salman_Dev
SharingTools Extension by Salman_Dev
SenderTools Extension by Salman_Dev to Send Message, Send File and Send Multiple Files
TextBoxPlus Extension by Salman_Dev
BluetoothInfo Extension by Salman_Dev

81. The_K_Studio aka Kiran M.

BMI Calculator Extension by The_K_Studio (Test Extension)
ByteTools Extension by The_K_Studio (Test Extension)

82. Ulli

UDP Client Extension by Ulli (see also the documentation here) Thank you Johannes_der_Wildwes!
Limited String List Extension by Ulli
MQTT Extension by Ulli
Battery Extension by Ulli
Component Group Extension by Ulli
App Launcher Extension by Ulli
Wake Lock Extension by Ulli
IR Transmitter Extension by Ulli
Audio Visualizer Extension by Ulli
Keep Alive Service Extension by Ulli
Notification Extension by Ulli
Utils Extension by Ulli
Async Extension by Ulli

83. Arjan Gupta aka newbiedeveloper

SetOpacity Extension by Arjan Gupta to make a component transparent
Gestures Detector Extension by Arjan Gupta
Accessibility Tools Extension by Arjan Gupta to simulate Back, Home and Recents clicks
Uninstall Extension by Arjan Gupta (unfortunately neither screenshots nor documenation available)
BookFlipView Extension by Arjan Gupta (4.60 USD)
PanoramaView Extension by Arjan Gupta to view an image like a Pro

84. Henry Richard

Telegram Bot API Extension by Henry Richard
Web Scraping Extension by Henry Richard
Simple Chart Extension by Henry Richard
World Radio Extension by Henry Richard

85. luv.ak.tech aka Aarush Kumar

86. zainulhassan

Math Expression Parser Extension by zainulhassan
Video Layout Extension by zainulhassan (7 USD), a video player with arrangements
Image Scale Type Extension by zainulhassan
AlphaDialog Extension by zainulhassan, transparent dialogs, custom dim color and more
View Pager Extension by zainulhassan with custom animation and more
Media Cache Extension by zainulhassan to cache video and audio files
Relative View Extension by zainulhassan to make complex UIs simple
Plyr Video Player Extension by zainulhassan
Image Viewer, Pinch to zoom, Double Tap to zoom, Animated zoom Extension by zainulhassan
Material Spotlight Extension by zainulhassan
Flexbox Extension by zainulhassan
Bubble Slider Extension by zainulhassan, a slider widgetwith a popup bubble
Toggle Button / Tags Group Extension by zainulhassan
Exoplayer Extension by zainulhassan
2021-11 Bubble Tab Bar Extension by zainulhassan (to be sponsored) to add a cool navigation bar

87. nikzdevz

RePosition Extension by nikzdevz (5 USD) to set components by giving coordinates in px wrt parent view
InApp Review Extension by nikzdevz (10 USD)
WallsPro Set Wallpaper in HD Extension by nikzdevz (10 USD)
SmoothMenuBar Extension by nikzdevz (9 USD)
CustomProgressViewExtension by nikzdevz to Create Animated Progress View
ScratchIt Extension by nikzdevz (10 USD) to Create Scratch card with Image
BottomMenuZ Extension by nikzdevz (11 USD) to create animated bottom navigation menu
IntroZ Extension by nikzdevz to create circle revealed splash screen
NeuMorphZ Extension by nikzdevz (9 USD) to create neumorphic card view
FBAuthZ Extension by nikzdevz (12 USD) to integrate Facebook Login Easily
PixZ Extension by nikzdevz to load an image in SVG format into an arrangement

88. Androking

Firebase Analytics Extension by Androking (9.99 USD)
Resize Image Online In RealTime Extension by Androking (9.50 USD)
Instamojo Payment GAteway Extension by Androking (250 RS)

89. golumaths100 aka Shivam Chouhan

App Launcher Extension by golumaths100 (Test extension)
Google Drive Display Extension by golumaths100

90. Nisarga_Adhikary

ProMath (another Math) Extension by Nisarga_Adhikary (Test Extension)
Mathematics Utils Extension by Nisarga_Adhikary (Test Extension)
Weight Conversion Utils Extension by Nisarga_Adhikary (Test Extension)
Physics Calculator Extension by Nisarga_Adhikary
DeviceIP Extension by Nisarga_Adhikary to get IPv4 and IPv6 address (DISCONTINUED)
Telegram Tools Extension by Nisarga_Adhikary
VpnChecker Extension by Nisarga_Adhikary to check, if user is using VPN
NetworkSpeed Extension by Nisarga_Adhikary
Get Country ISO Code Extension by Nisarga_Adhikary

91. electrobot_appy

My Toast Extension by electrobot_appy (Test extension)
My Sharex Extension by electrobot_appy

92. Sumit1334 aka Sumit Kumar

93. Akshat_Rana

Text Tools Extension by Akshat_Rana (Test Extension)
Animated Gradient Background Extension by Akshat_Rana
Badge View Extension by Akshat_Rana to add badges to your view (not supported anymore)
Animated Gradient Extension by Akshat_Rana
Phone Number Validator Extension by Akshat_Rana for indian phone numbers

94. oseamiya formerly known as sneha_sharma

95. Mario1

Pedometer Sensor Extension by Mario1 without using accelerometer
Pedometer with Foreground Service Extension by Mario1

96. VSATISH13

MakeViewUp Extension by VSATISH13 to beautify and customize Android views
Overlap View Extension by VSATISH13 to create overlying layout

97. Meulencv aka MEULEN

Extension to convert language from ISO 639-1 to Alfa-2 by Meulencv
Bitcoin Price Extension by Meulencv
Youtube Info Extension by Meulencv
Charts Extension by Meulencv using the Quickchart API
2021-11 Wallpaper Changer Extension by MEULEN

98. vkpdeveloper aka Vaibhav Pathak

SocketIO Client Extension by vkpdeveloper
AndroidID Extension by vkpdeveloper

99. jaxparrow aka Jack Faith

Network Usage Extension by jaxparrow
File Cryptography Extension by jaxparrow
ColorTools Extension by jaxparrow to work with colors
SharedDB Extension by jaxparrow to store/retrieve data between application
2021-12 PointerTools Extension by jaxparrow for Pointer Accessibility

100. Patryk_F

Convert binary data to text and vice versa Extension by Patryk_F
Label Plus Extension by Patryk_F to provide additional methods for the label component
Keyboard Extension by Patryk_F to offer additional methods for the keyboard

101. Sashibhusan_Coder

Paytm Payment API Based Extension by Sashibhusan_Coder
Razorpay Payment API Based Extension by Sashibhusan_Coder
PayU Payment API Based Extension by Sashibhusan_Coder

102. UnknownBeast aka Know_About_IT aka LGdeveloper formerly known as RudraFromIndia

Text Typewriter Extension by Know_About_IT
Dictionary Extension by RudraFromIndia
Mail Sender Extension by RudraFromIndia
Facebook Ads Extension by Know_About_IT (unknown price)
Ironsource Ads Extension by Know_About_IT and sneha_sharma
Vungle Ads Extension by Know_About_IT and sneha_sharma
Callie Extension by Know_About_IT, make calendar view easily
Flubbie Extension by Know_About_IT to animate components
Darkie Extension by RudraFromIndia to disable Dark mode for your views
Fire Analytics Extension by RudraFromIndia to add Firebase Analytics to your apps
DevyInfo Extension by RudraFromIndia to get device information
Numby Extension by RudraFromIndia, a number picker
Smiley Extension by RudraFromIndia, an animated rating system
Wavie Extension by RudraFromIndia, add wave animation to app
Tapjoy Extension by RudraFromIndia (9 USD)
Clockie Extension by RudraFromIndia, an analogue clock widget for apps
BeatingView Extension by RudraFromIndia, to show beat animation for images
Wave Loader Extension by RudraFromIndia, to display Loading Wave Progress on Images
Flaskie Extension by RudraFromIndia, a flask loading view
Lottie Animations Extension by RudraFromIndia, add animations to your app
InMobi Ads Extension by LGdeveloper (350 INR)
2021-11 Admob & Admanager Ads Extension by RudraFromIndia
2021-11 Bling Animation Extension by UnknownBeast
2021-11 Scratcherr Extension by UnknownBeast (2.67 USD), a scratchcard for your apps
2021-11 Spinerrr Extension by UnknownBeast (6.71 USD), a spin and win system
2021-11 Code Editor and Highlighter Extension by UnknownBeast (unknown price)
2021-11 Roulette Extension by UnknownBeast (2.67 USD)
2021-11 Piano View Extension by UnknownBeast
2021-11 Detecter Extension by UnknownBeast to detect OTPs automatically
2021-11 Navvy Extension by UnknownBeast, a bottom navigation
2021-11 ML Kit Scanner Extension by UnknownBeast (unknown price) to scan barcodes offline with precision
2021-11 ML Kit Image Labelling Extension by UnknownBeast (unknown price)
2021-12 Speedie Extension by UnknownBeast to add a speedometer widget

103. shanji76242143 aka SHAN AWAN aka Sid_Creative

Scrolling ListView Extension by shanji76242143
Digital Clock View Extension by shanji76242143
HTML Style CSS Viewer Extension by shanji76242143
Glossy Card View Extension by shanji76242143

104. TIMAI2

AltNotifier Extension by TIMAI2 to provide three methods not found in the standard notifier component for App Inventor
ChartMakerPlus Extension by TIMAI2 to make Google Charts
ImageNotifier Extension by TIMAI2
Base64 Tools Extensions by TIMAI2
BasesLoaded Extensions by TIMAI2, an extension for a variety of base encodings
ViewPDF Extension by TIMAI2, a simple pdf viewer for local files
NoFileHTML Extension by TIMAI2, view html without files
Base64 Encoded Image to Component Extension by TIMAI2

105. PRATY_PROGRAMME_S_LA aka Pratyush_Dev

Extract Links Extension by PRATY_PROGRAMME_S_LA (Test extension)
Loaaf Extension by PRATY_PROGRAMME_S_LA (4 USD) offers various loading animations
WaveAnimation Extension by PRATY_PROGRAMME_S_LA
NumberProgressBar Extension by PRATY_PROGRAMME_S_LA
Rope Progress Bar Extension by PRATY_PROGRAMME_S_LA

106. HritikR

Bugfender Extension by HritikR
MultiLamp (Spotlight) Extension by HritikR
FadingText Extension by HritikR

107. Faraz_Firoz

Calculator Extension by Faraz Firoz (Test Extension)
Lists Extension by Faraz_Firoz (Test Extension)
Popup Extension by Faraz_Firoz

108. Tsvi

Fitness Calculators Extension by Tsvi (Test Extension)
Gimatria Extension by Tsvi for Hebrew words
Anagram Extension by Tsvi

109. Aquib_Khan

110. Logicaldevz

Text Clock Extension by Logicaldevz (Test Extension, can be easily implemented using existing blocks)
Adcolony Ads Extension by Logicaldevz

111. SRIKAR_B.S.S

MyShopping Search Extension by SRIKAR_B.S.S (Test Extension)
Animation Maker Extension by SRIKAR_B.S.S
Pereodix Extension by SRIKAR_B.S.S to get chemical element's info, latin name and symbol

112. Soham_Shah

Circular Animation Extension by Soham_Shah
StyleTextUtils Extension by Soham_Shah

113. Yash_Sehgal22

Spelling Corrector Extension by Yash_Sehgal22. Note: this extension uses an API on a server, so if that server goes down, the extension will not work anymore.
Weather Mate Extension by Yash_Sehgal22. Note: Before using the extension you should read this.
Vulord Extension by Yash_Sehgal22 to hide vulgar words. Note: this extension uses a Python module on a server, so if that server goes down, the extension will not work anymore.

114. OmerGundogar

115. AppHelper_Studio

Responsive App Size Extension by AppHelper_Studio
Highlight Text Extension by AppHelper_Studio

116. Alpha2020

Geometry Tools Extension by Alpha2020 (Test extension)
Search Engine Extension by Alpha2020 (Test Extension)

117. ttt

118. Horizon aka Manan Sharma

119. Gordon_Lu

Maths Calculator Extension by Gordon_Lu (Test Extension)
2021-12 QR Generator Extension by Gordon_Lu

120. Others

Client TCP Extension by Jean-Rodolphe Letertre (Version 0.4.4.2), see also the discussion here
SMB Manager Extension by Jörg Hüneburg
to list all files and folders of smb share (windows shared folder) and to copy a local file to smb share
Image Base64 Extension by Sivagiri_Visakan
Sunset/rise Extension by marzukalhashimi
Activity Starter Extension by pepemont, which additionally is able to pass boolean and long values
Workdays Extension by Gabryk to calculate the number of working days between 2 given dates - web.archive.org link, Appybuilder community has been closed
Mp3 Metadata Extension by enaixpeend
Bitwise Extension by Nathan_P to do bitwise operations
Advanced Location Sensor Extension by Niclas Gins
SuperRewards Extension by ozonostudio - web.archive.org link, Appybuilder community has been closed
Yes another SQlite Extension by frdfsnight - web.archive.org link, Appybuilder community has been closed
Enhance.co Extension by enhance.co
GUI and Animation Extension by Tomislav Tomsic
FTP Extension by Dramon Reyes (6 USD or 6 EUR)
WAV sound recorder Extension by G10DRAS
Call Android API from string experimental Extension by actech
Extension to change Ad unit Id for AdMob Rewarded Video Ads and Interstitial Ads by app191852 (30 EUR)
Dual SIM IMEI Viewer Extension by Sakis K
Time converter Extension by xnbx2012 (Test extension)
(Another) Device Info Extension by SamuelNg
Ethereum Extension by Ethereum foundation, documentation see here
Pdf Tool Extension (Version 2) by Andro King - web.archive.org link, Appybuilder community has been closed
JSON Decoding Extension by yamafu - web.archive.org link, Appybuilder community has been closed
AWS AI Services Extension by Ceyhun Özgün including a chat-bot generation service called Amazon Lex, a text-to-speech service called Amazon Polly, an image and video recognition service called Amazon Rekognition and a language translation service called Amazon Translate
(Another) Android ID Extension by hackinggyann000
Flurry Analytics Extension by DevMaster - web.archive.org link, Appybuilder community has been closed
Math Extension by Idgomez
WhatsApp Sticker Extension by apk_developer aka Akatsuki Team (paid)
Machine Learning For Kids Extension by machinelearningforkids.co.uk
Extension to ask user to input his password before performing some action by Federico_Morrone
Online DocViewer and Alternative PdfViewer Online Extension by project1kangris2018
Phase - Animations made easy! Extension for Kodular, Extension for MIT App Inventor by Shreyash
Text to emoji font Extension by elmanhossendev
Note: to get that extension, you first have to download an app from Google Play.
Barcode Utilities Extension by Futuredev aka Miki Palazzo
Status Bar Text Color Extension by nitinseshadri
Secured Countdown Extension by Aditya_Singh
SearchShop Extension, another Search Engine Extension by popovicstudios
Devendra Weight on planet and star Extension by Earn_Money_Online (test extension)
Text Alignment Extension by Boban Stojmenovic
Another Mp3 Metadata Extension by jean-marc_Latour
PasswordUtils Extension by devanshvinayak9
Screen Timeout Extension by saurav_shaw612
Bouncing View Animation Extension by nandu_aeer
Navigation Extension by LetsCode. Note: this extension is obsolete, the navigation component now is available...
Panel Extension by cedkim, a web admin panel
ScanView - ZxingView Barcode Scanner Extension by Silver
Hash Value Tools Extension by camargopellanda15 to return HMAC-SHA1, HMAC-SHA256 and HMAC-SHA512 hashes
Euclid's Division Lemma Extension by Bharat Android App Development (Test Extension)
Palindrome Checker Extension by newbiedeveloper aka sanjogitagupta16 (Test Extension)
GST calculation Extension by KP8158 aka Kapil Patel (Test Extension)
Serial OTG Extension by rkl099. New version of the built-in component Serial. It accepts more USB serial adapters and add functions.
Simple Android Settings Extension by annaschawdhary157 aka Annas Chawdhary.
Number Formatting Extension by GuiM_Hares (Test Extension)
Click Extension by Horacio_Spinelli
eFeMail Auto Smtp Sender Extension by alegoriasoft aka Felix
Another MathCalc Extension by Sagnik_Chatterjee (Test Extension)
MathUtils Extension by Muhammad_Mansuri aka App (Test extension)
GAID (Google advertising id) Extension by Official_Ben10 to get user's GAID
Doze Mode Extension by Dokolo to find out, if Doze Mode is supported
Pythagoras Extension by samuelbeloni
String Functions Extension by Pythony
Extension to Send a SMS in another activity with default application by Seb1
Extension to get Pi value in evaluated form by Raja_HarshVardhanSolanki (Test Extension)
NFC and Mifare UID Extension by Marco_Perrone
TextToMP3File Extension by Amlin
All Thumbnail Downloader Extension by i4 Creator
Unity ads Extension by uq_n
Morse Code Extension by Kaustubh Rakhade (Test Extension)
NFormat Extension by Edmilson Torres to format numbers based on language and country
Modified Look Extension by AppInventor_Japan to work on more devices
Color Extension by Sketch to blend two colors into one
String Tools Extension by jiji_solaman (Test Extension)
Utubedetails Extension by Nami_Chand to get Youtube video details
CallHistory Extension distributed and maintained by Leul_Melaku, created by Salman_Dev
Names Extension by Markus_Urban to predict some information about a name, such as age, nationality, gender
Flip Countdown Extension by devcafeofficial
EazzySheets Extension by Vishal_Nage, a basic Google spreadsheet extension
Quiz Extension by abhishekchaubeypro
MySQL Extension by Jishnu_Vardhan (Test Extension) to insert a record in a specific table
Create Circle Slider Progress Extension by Abdullah_Tawfeeq
Thermal Printing Extension by mmnettime (7 USD)
VideoImage Extension by egegvner (Test Extension) to get video image from given URL
Email Otp Extension by Tiko_X
FormulasV Extension by TekWizer (Test extension)
Back To Phone Home Screen Extension by MJ_BUNNY_T.V
CMath Extension by Nikhil8219
Temperatur Converter Extension by Overall_General (Test Extension)
InAppReview Extension by Aditya-Developer185i
Math Tools Extension by SabpabCreator (Test Extension)
Metadata Retriever Wrapper Extension by Michael_Mesanagrenos
JSON Path Extractor Extension by markcurlinoski
SizeAuto Extension by christian_cesar_quil (3 USD)
2021-11 Even Or Odd Extension by Victor_Ken (Test Extension)
2021-12 Number Checker - Prime, Even, Odd Extension by mahmoud_hooda
2021-12 Youtube API Extension by SonrajTech
2021-12 Advance Scrolling Extension by Balajidev to customize scroll views

Creative Commons License
This work by Pura Vida Apps is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License
with attribution (name=Pura Vida Apps and link to the source site) required.

What Is An Event Handler In App Inventor

Source: https://puravidaapps.com/extensions.php

Posted by: daviescritaiment1967.blogspot.com