The open source Flex SDK includes the projects developers need to start building effective Flex applications today.

Easily connect to back-end distributed data and push in real-time to Adobe® Flash® Platform applications.

Virtual machine and Just In Time (JIT) compiler implementation of ECMAScript and ActionScript.
About Adobe Open Source

Welcome to Open Source at Adobe. This site presents the definitive view into open source activities at Adobe, including details regarding projects that Adobe participates in and hosts.

In addition, you will find information that will help you get involved and keep up with the latest work in the Adobe open source community.

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Software and Technology Lab

If you arrived here because you were searching for information regarding Adobe Source Library (ASL) or Adobe Media Gallery, you can find these projects at their new location on the STLab website.

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News
2009/06/03 | Adobe Open Source
Adobe announced a new software framework for building media players that extends the capabilities of the Adobe® Flash® Platform. Code-named "Strobe,...
2009/06/03 | Adobe Open Source
Adobe Systems Incorporated announced further advancements to the Adobe® Flash® Platform with the beta availability of Adobe® Flash® Builder™ 4 (formerly named Adobe®...
2008/08/20 | Adobe Open Source
FlexUnit, a unit testing framework for Flex and ActionScript 3.0 applications and libraries, is now available on the Adobe Open Source website....
2008/08/06 | Adobe Open Source
The Cairngorm project, the lightweight micro-architecture for rich Internet applications built in Flex or AIR, is now hosted on the Adobe Open Source website. Milestone builds, documentation,...
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