- Home: https://github.com/krzys-h/UndertaleModTool
- Inspiration: Undertale
- State: beta
- Keyword: tool, content commercial
- Code repository: https://github.com/krzys-h/UndertaleModTool.git (@created 2018, @stars 1003, @forks 196)
- Code language: C#
- Code license: GPL-3.0
- Developer: Alex Gurganus, Archie, Archie_UwU, Benjamin Urquhart, colinator27, ConfiG, Grossley, Jacky720, João Henrique, Kneesnap, Krispy, krzys_h, "Krzysztof Haładyn (krzys_h)", Liu Wenyuan, Miepee, Nikita Krapivin, Nyako, Vladislav Stepanov, VladiStep, Yoav Haik, zivmaor
Tool of Undertale. Tool for modding, decompiling and unpacking Undertale (and other Game Maker: Studio games)
- Build system: Visual Studio