FlashDevelop
Used by 4 peopleflashdevelop.org ↗
“For coding: I mostly use FlashDevelop, with the Adobe Flex compiler.”
Terry Cavanagh Interview, Indie game developer (VVVVVV) · via Uses This 
“Flashdevelop is also a nice open-source framework for Flash movie development but sometimes I have no choice but to use Flash CS4.”
Andrew Huang Interview, Hardware misfit · via Uses This
