A desktop application for editing Pokémon Red & Blue (Game Boy) save files, built in Qt 6 with a C++ core and a QML interface. It is open source.

What it does

• Edits the full save: trainer card, Pokédex, team and box Pokémon (stats, moves, DVs/EVs, nicknames), items, and world state.
• Reads and writes saves byte-for-byte: only the bytes for an intended edit change, and nothing else — a core design constraint of the project.
• Includes map and full-game randomisation that stays within playable bounds, and an in-game font keyboard for name entry.

Architecture, in brief

The codebase is layered — a common library, a save-file library, a data library, and the application/QML layer — with a comprehensive automated test suite (QtTest/CTest) and continuous integration. It originated in 2017–2020 and was revived in 2026.

It is a ground-up rewrite of the original Pokered Save Editor (Electron/Angular). While this Qt 6 version is still in alpha, that predecessor remains the complete, stable tool for editing a save.

Full documentation

The project publishes its own documentation site (generated API documentation plus its living notes) and is developed in the open:

• Documentation site: https://fairyfox.io/pokered-save-editor-2/
• Notes: https://github.com/junebug12851/pokered-save-editor-2/tree/main/notes
• Repository: https://github.com/junebug12851/pokered-save-editor-2

This project is also the origin of the shared engineering standards used across the other repositories.