App Inventor Open Source Development

The MIT Center for Mobile Learning is pleased to announce the official free and open-source release of the MIT App Inventor source code at

Our hope is to nurture a robust and active open-source community, now that we have deployed MIT’s large-scale public App Inventor service. We will be updating this site with each new release of MIT App Inventor. We have also posted supporting documentation and will continue to add more as it evolves.  

In addition we have created a forum for the App Inventor open-source developer community. The forum will be managed by MIT App Inventor Development Team Member José Flores. José is enthusiastic about helping this community realize its potential to become the source of creativity that will evolve and extend App Inventor and open the power of mobile apps development to learners and aspiring developers of all ages. We look forward to all of your feedback and questions as we move forward in the development of App Inventor.

Enjoy the code, and Happy Inventing!

Andrew McKinney
MIT Appinventor Technical Lead

Showing 1-21 of 910 topics
Announcing App Inventor Extension Components Hal Abelson 9/22/16
esp8266 WIFI apk problem Mehdi Emm 8:42 AM
i have build and run app inventor successfully but one i can not set or recovery password 孟神通 9/24/16
Is it possible to repackage a canvas as an extension and what would be the best way to do this? Jeff Mezzanotte 9/23/16
can not find aapt when building the server Gary Frederick 9/22/16
Fast Fourier Transform progress Hakim Haris 9/22/16
Did anyone experimented with button shapes? Tomislav Tomšić 9/22/16
i have build app inventor successfully ,but after i run app inventor server ,i can not visit 孟神通 9/21/16
can not download the apk Linn Lau 9/21/16
Who can help me to make an extension? Lina Zhang 9/21/16
Basic authentication Oscar Testa 9/21/16
How to customize icons Mic 9/21/16
looking for help about the login of ai2 source code 9/20/16
How to solve:You Must Create an Auth Key see misc/docs/ 孟神通 9/20/16
Build Fails RobNCD 9/20/16
Interest in developing BLE (bluetoooth 4.0) support / boston area dev(s) for a weekend hacksession? Nancy Ouyang 9/20/16
i have problems where install ai2,in the step of blockly compile 孟神通 9/20/16
Play streaming too slow Angelo Valdora 9/19/16
App Inventor منتظر الطائي 9/16/16
companion issues David Wolber 9/8/16
embedding a webview onto app screen using Java code Riaz Ahmed 9/7/16
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