The cross-platform toolkit
Open source library for creative expression on the web, desktop, etc.
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Write music for the Sega Mega Drive
Modern, lightweight and efficient 2D level editor
HTML5 editor, free and open-source website builder based on Silex
Free online HTML website builder
FlashDevelop plugin to make assets library swc and swf.