The most complete tool for modding, decompiling and unpacking Undertale (and other GameMaker games!)
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Ubuntu
- Linux

UndertaleModTool is the most popular Windows, Mac & Linux alternative to FModel.
UndertaleModTool is the most popular Open Source & free alternative to FModel.
- UndertaleModTool is Free and Open Source








