How to Convert Multiple VTF Files to JXL?
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 VTF files
Start reaConverter and add your .vtf files. The software processes everything locally, so your files never leave your computer.
Use drag-and-drop, folder browser, or right-click conversion from Explorer.
3. Select JXL as output format
Select JXL from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.
4. Start VTF 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.
How VTF and JXL differ in practice
VTF and JXL both compress by discarding data, so this is a re-encode rather than a copy. The output is built from already-compressed pixels, and the artefacts of the first encode are carried into the second. Use a high quality setting, and convert from the original whenever you still have it.
