How to Convert Multiple GRB Files to QOI?
1. Download and Install reaConverter
reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.
2. Load your GRB files
Add GRB files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.
You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

3. Select QOI as output format
Select QOI from the output format list and set your destination folder. You can also adjust quality and compression settings.

4. Start GRB to QOI conversion
Click the Convert button to start. reaConverter will process all your files with the settings you selected.

When finished, your new .qoi files will be waiting in the destination folder.





