JPEXS Free Flash Decompiler (FFDec) is opensource flash SWF decompiler and editor. Extract resources, convert SWF to FLA, edit ActionScript, replace images, sounds, texts, fonts and more. Various output formats available.
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RisohEditorKatayama Hirofumi MZ
katahiromz.RisohEditorv6.2.0
Another free Win32 resource editor
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scratchtextrchase999
rchase999.scratchtextv1.0.0
A text-based language that compiles to and decompiles from Scratch .sb3 projects.
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C
ChampollionOrvid
Orvid.Champollionv1.3.2
A decompiler for the Papyrus script language used in Skyrim, Fallout 4, Fallout 76, and Starfield. It aims to produce a Papyrus Script file (.psc) from a .pex binary file. The decompiled script should recompile to a functionally equivalent PEX binary.
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GM8DecompilerOpenGMK
OpenGMK.GM8Decompilerv2.2.0
A decompiler for GameMaker 8.x executables
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JD-GUI DuoNicolas Baumann
Nbauma109.JDGUIDuov2.0.114
A 2-in-1 Java decompiler based on JD-Core v0 and v1