Convert X to JXL

X to JXL converter that respects your privacy. No cloud uploads, no file size limits — just fast offline batch processing.

Online converters too slow for your X files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

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.

Install reaConverter

2. Load your X files

Add X 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 JXL as output format

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

4. Start X to JXL conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

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

X to JXL Converter

reaConverter offers the fastest, simplest solution for converting your X files into JXL in seconds - all files processed on your PC for maximum privacy and speed.

Download Free Trial

Do more with your files

Converting X files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features

User Reviews

Average User Rating:
Last updated on January 25, 2026

"reaConverter’s Watch Folders feature has transformed my workflow! I set it to automatically convert my images to JXL, and now every new file I add gets optimized instantly. JXL keeps my photos crisp at half the file size of JPEGs. Super easy setup, flawless results – a must for batch processing!"

Alex R.

Photographer

"Switching to JXL format with reaConverter was effortless. The compression is incredible - my images look perfect at half the file size of JPEGs. The batch conversion works flawlessly, saving me storage space without sacrificing quality. JXL is clearly the future, and reaConverter makes adoption painless!"

Mark T.

Satisfied Customer

"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"

Robert Williams

Happy User

"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"

Henry R.

Happy User

"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."

Paul Baker

Happy User

"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."

David R.

IT Solutions Architect

X to JXL Conversion: FAQ

Can reaConverter convert X to JXL?

Yes! reaConverter instantly converts .x to .jxl with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert X to JXL online?

If you only need to convert a few X files to JXL format, feel free to try our free online free online X to JXL converter — perfect for small batches with no installation needed!

How can I turn X files into JXL on my computer?

The best way to change Xs to JXLs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from X to JXL.

How can I automate X to JXL files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert X files to JXL using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line x to jxl converter for batch processing.

What else can I do with reaConverter?

Change format settings Change DPI Convert RAW photos Convert GIS files Convert DICOM files