This report highlights the top-rated open-source tools on GitHub for editing Ren’Py save files. Since Ren’Py saves use the Python pickle format, they are not easily readable with standard text editors. The following tools provide specialized interfaces to modify game variables, persistent data, and progression. Top Ren’Py Save Editors on GitHub

Renpy-Runtime-Editor: A specialized tool for modding and editing data while the game is running or "un-built".

If you are the developer or have access to the project files, Ren'Py has built-in tools that are often more stable than external editors: