JPEG XL Converter
Convert images to and from JPEG XL (.jxl) right in your browser. Your files never leave your device.
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What is JPEG XL?
JPEG XL (.jxl) is the modern successor to the classic JPEG. It produces noticeably smaller files at the same β or better β quality than JPEG, PNG and WebP, and it can shrink existing JPEGs by about 20% with no quality loss at all.
Smaller files
Keep the same visual quality while cutting file size, so pages load faster and storage goes further.
One format, everything
Lossless and lossy, photos and graphics, transparency and animation β all in a single modern format.
Lossless from JPEG
Re-pack your existing JPEGs to JPEG XL and recover ~20% of their size without touching quality.
Want the longer answer β where the format came from, what it does that JPEG and WebP can't, and whether you should be using it yet? Read what JPEG XL is, or compare it head to head with WebP. Everything else we've written lives in the guides.
How to convert to JPEG XL
No software to install, no account, no upload. Three steps, all on your device.
Drop your images
Drag in one or many JPG, PNG, WebP or GIF files β or click to pick them.
Pick quality
Choose Auto, set a quality level, or tick Lossless for a perfect copy.
Download
Get your .jxl files instantly, with the size saved shown for each image.
Why this converter
Most online converters upload your photos to their servers and cap how much you can do for free. This one doesn't.
| Feature | JXL Convert | Typical online tools |
|---|---|---|
| Files processed on your device | Yes | Uploaded to a server |
| Sign-up required | Never | Often |
| Daily / size limits | None | Common |
| Watermark | None | Sometimes |
| Price | Free | Free tier + paywall |