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 1-19 of 673 topics
Lego Mindstorms EV3 support Alok Kuchlous 7/26/15
Map/Reduce Job Ready 7/24/15
Proposal - SoundMeter component (Used to detect the sound level from the mic) Gareth Haylings 7/24/15
Making A Safer TinyWebDB. alan jackson 7/21/15
Horizontal Scroll y Verticall Scroll David Cespedes 7/20/15
Break ( Fallo al copilar appinventor en esta linea 183 ) en componente David Cespedes 7/12/15
[MIT App Inventor] "" show The requested URL / was not found on this server. Mah yon fong 7/9/15
tinywebdb Abhishek Kumar 7/9/15
No puedo copilar el appinventor David Cespedes 7/5/15
Reading and filtering from Fusion Tables Wilfred 7/2/15
How to track cellular phone number location using appinventor version : beta or appinventor 2 ? LOVE APP INVENTOR 6/30/15
Cannot find download links for version 1.2 and 2.3 Anna Titova 6/30/15
Error while setting up an appspot Devid Farinelli 6/29/15
How can i create random backround and sound by shaking the phone DarthFish 6/29/15
Functionality of useFront Sidharth Raja 6/29/15
LayerBox for organizing blocks Rudy Chin 6/27/15
Built in an animation Florian Grunert 6/26/15
Proposal and App Inventor instance for Options Menu Item Component Yucun Li 6/25/15
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