Wick Editor - The Internet's free and open-source creation toolkit.
JPEXS Free Flash Decompiler - JPEXS Free Flash Decompiler (FFDec) is an opensource Shockwave Flash (SWF) decompiler.
AnimationMaker - Create animated presentations and export them to a video file, animated gif or HTML based on SVG...
Flash Decompiler Trillix - SWF Decompiler Trillix allows you to decompile SWF (Flash), convert SWF to FLA, extract SWF elements and edit SWF file. Supports AS 3.0, Flash CS6 & CC and Flex.
Adobe Animate - Adobe Animate is a Flash, vector animation software.
SWFTOOLS - SWFTools is a collection of utilities for working with Adobe Flash files (SWF files).