Flex SDK

Flex® is now being developed at the Apache Software Foundation so now you can participate in the project and directly contribute to the next version of the framework. Click here to go to the Apache Flex website. The content on this Open@Adobe site reflects the last Adobe release of Flex (Adobe Flex 4.6) and older versions.

Overview

Flex is a highly productive, open source framework for building and maintaining expressive web applications that deploy consistently on all major browsers, desktops and operating systems.

This site is focused on the development of the Flex SDK. If you are looking for more information on how to use Flex, you may wish to visit the Flex Developer Center.

Flex 4.6 is the latest production quality release. (Download)
Flex 4 is the prior version (Download)
[Flex 3] (Download)

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Download

Flex SDK version 4.6.0.23201 is the latest production quality release.

Flex SDK version 3.6.0.16995 is the most recent update to the Flex 3 code-base.

Please review the Downloads page for an explanation of the different downloads available.

Adobe also offers these Flex-related products:

Free Adobe Flex SDK (Download)/Adobe Flex Builder (Download)

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Getting Involved

There are many ways to contribute to Flex: - Ask and answer questions
on the forums and mailing lists - Investigate bugs that have been filed
and contribute patches where appropriate - Request a feature - Contribute to the Adobe Cookbook

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