GBA save file converter

This website converts between the .sav format used for GBA save files by emulators like Mesen, and the .srm format used by Retroarch. These two formats differ simply in the order of their bytes, with each group of 8 bytes reversed. This means that for example a 16 byte .sav file

00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f

would become the .srm file

07 06 05 04 03 02 01 00 0f 0e 0d 0c 0b 0a 09 08

and vice versa.

Drag a .sav or .srm file here,
or click to open the file picker.