Is .aab open source or private?

Hey everyone,

I am here and I would like to ask that .aab is open source or private?
And if it is Open Source then please provide the link of that file as our team is building an app builder.


Implementing Android app bundles (.ABB) in Appinventor is a GSOC project by @Diego:

Yes, It's open source.

see here:

You will find the PR here:


Thanks @MohamedTamer :grinning:
It will surely help my team

Thank You

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