PKMSaveEdit

Gen 3 Save Editor

Works with 128 KB battery saves from Pokémon Ruby, Sapphire, Emerald, FireRed and LeafGreen. Files are processed locally and never uploaded.

…or drag & drop your save file anywhere in this box.

Drop a .sav file here or use the button above. Everything is processed locally in your browser — no upload.

Notes

  • Every Pokémon record stores a checksum over its data block. The editor recomputes it after each edit — a stale checksum would make the game show a "Bad Egg".
  • Edits are written to both save slots (the main one and the backup), and the main slot's save counter is advanced so the game treats it as the newest save.
  • Nicknames are limited to 10 characters, OT names to 7 — the same limits the games enforce.
  • After exporting, load the save in your emulator and save once in-game. If anything looks wrong, restore your backup.