LDraw - LDraw is an open standard for LEGO CAD programs that allow the user to create virtual LEGO models...
JPEXS Free Flash Decompiler - JPEXS Free Flash Decompiler (FFDec) is an opensource Shockwave Flash (SWF) decompiler.
LeoCAD - LeoCAD is a CAD program for creating virtual LEGO models.
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.
Stud.io - Build LEGO designs online with friends.
SWFTOOLS - SWFTools is a collection of utilities for working with Adobe Flash files (SWF files).