BlueMaxima's Flashpoint - the webgame preservation project.
JPEXS Free Flash Decompiler - JPEXS Free Flash Decompiler (FFDec) is an opensource Shockwave Flash (SWF) decompiler.
SWF File Player - SWF File Player is a free player for SWF (Shockwave Flash) files.
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.
CheerpX for Flash - its adobe flash player in webassembly
SWF Picture Extractor - Free Flash Player for Mac which can be used both as SWF Player and FLV Player for Mac to playback Flash movies with plenty of useful features.