The most comprehensive and user-friendly save editing tool available on GitHub is the paradoxie/saveeditor project. This universal, privacy-focused online save file editor supports multiple game engines including RPG Maker, Unity, Ren'Py, Unreal Engine, and GameMaker, making it an all-in-one solution for gamers who play across different genres.
Modify "persistent" variables that remain constant across multiple playthroughs. Format Conversion: Tools that decode the Ren'Py save format into readable or text, allowing for manual editing before re-encoding. Notable GitHub Repositories & Tools Universal Save Editor: A popular, privacy-focused online tool available on Renpy Save Editor Github
: A graphical program for creating and editing games without manual coding. Ren'Py Text Editor The most comprehensive and user-friendly save editing tool
If you are a developer looking to integrate editing features directly into your workflow: Action Editor Format Conversion: Tools that decode the Ren'Py save