FlashDevelop - FlashDevelop is a code editing tool created to help flash developers complete projects faster and easier.
Ruffle - An open source Flash player
Shock FLV Player - Shock FLV Player is a handy and reliable utility designed to play FLV files.
SuperNova Player - SuperNova Player allows systems to play .SWF files in a standalone player launched from any browser.
Sothink SWF Decompiler - Sothink SWF Decompiler, a professional Flash decompiler easily decompiles one or more SWF to FLA.
Lightspark - The Lightspark project