# Flex 3 SDK with Eclipse

**URL:** <https://forum.kirupa.com/t/flex-3-sdk-with-eclipse/292774>\
**Category:** flash\
**Created:** [July 18, 2009, 8:24pm UTC](https://forum.kirupa.com/t/flex-3-sdk-with-eclipse/292774 "2009-07-18T20:24:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![louissi](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/louissi/32/2189_2.png) [@louissi](https://forum.kirupa.com/u/louissi)\
**Post date:** [July 18, 2009, 8:24pm UTC](https://forum.kirupa.com/t/flex-3-sdk-with-eclipse/292774/1 "2009-07-18T20:24:58Z")

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Hey guys! I have been usign flex with eclipse for a while at work, but I never installed it myself. I know that the flex 3 sdk is out there for free, same as eclipse. I am trying to install the flex sdk so I can edit and compile AS3 in eclipse, but I don’t know how. What about flew builder? I know that the version 3 is paying, but is there a free version? I am kinda lost about the differences in the SDK and the builder.

I installed eclipse and downloaded the latest flex SDK. Now I just don’t know how to use the SDK in eclipse. Any one can guide me?