How to Convert Multiple TJP Files to JXL?
1. Download and Install reaConverter
reaConverter is quick to download, install and launch. This standalone software is extremely efficient in managing a wide range of batch conversions. reaConverter is incredibly powerful and boasts an extensive variety of features.
2. Load your TJP files
Start reaConverter and load all the .tjp files you intend to convert into .jxl. The software supports multiple TJP conversion and processes all files locally on your computer.
Select TJPs from a folder or by drag-and-dropping them directly into the reaConverter window.

3. Select JXL as output format
Pick the JXL as output format and choose the destination folder where you want to save new .jxl files.

4. Start TJP to JXL conversion
Then simply press Convert button and your conversion will begin in no time!

Once the conversion is complete, you can find your JXL files in the destination folder you selected.