How to Convert Multiple TUB Files to AVIF?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting TUB files in under two minutes.
2. Load your TUB files
Add TUB 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 AVIF as output format
Select AVIF from the output format list and set your destination folder. You can also adjust quality and compression settings.

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

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







