How to Convert Multiple MRW Images to JXL?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting MRW files in under two minutes. Need edits? Resize, rotate, or add watermarks during conversion.
2. Load your MRW files
Add MRW camera files to reaConverter. Import folders of RAW photos and process them all with consistent settings.
Use drag-and-drop, folder browser, or right-click conversion from Explorer.

3. Select JXL as output format
Select JXL from the format list. Fine-tune color space, compression, and quality before converting your RAW photos.

4. Start MRW to JXL conversion
Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your JXL output.








