This is a port of UndertaleModTool (the popular modding, decompiling and unpacking tool for Undertale/GameMaker) running in a web browser through the power of WebAssembly!
The GUI is rebuilt from scratch using web technologies, however many features are not implemented yet.
The web tool supports the latest versions of Chrome, Firefox and Safari on desktop. Mobile versions of Chrome on Android and Safari on iOS are also supported.
If you found a bug, first try checking if it can be reproduced on the main Windows version of UndertaleModTool. If the bug exists there as well, then report it to their issues page instead.
For feature requests or bugs about the web version, report it on the issues page.
For more details on contributions and the project's AI policy (tl;dr: no), see the CONTRIBUTING file.
Licensed under GPL v3.0, same as UndertaleModTool.