JPG to JXL
Turn JPG photos into smaller JPEG XL (.jxl) files, in your browser.
Drop JPG files here or click to browse
Processing happens on your device. Nothing is uploaded.
100% Private
Files are processed locally in your browser. They never touch our servers.
Smart Defaults
Sensible settings are applied automatically. Fine tune them only if you want to.
Batch Processing
Drop multiple images at once and download everything together as a ZIP.
How to use JPG to JXL
- Drop your images onto the page, or click to pick them from your device
- Use the default settings, or adjust the options for your file type and target result
- Download the finished images one by one, or save the full batch as a ZIP
What JPG to JXL is for
Use this tool to create a next-generation JPEG XL copy of a JPG, with better compression and an optional lossless mode. It encodes the .jxl entirely in your browser, with nothing uploaded.
- Create a smaller, next-generation JPEG XL copy of a JPG photo.
- Build a future-proof archive with better compression than JPG.
- Make a fully lossless JXL by setting quality to 100.
- Convert a batch of JPGs to JXL at once.
Best practices for better results
Image optimization works best when you choose the right balance between file size, visual quality, dimensions, format compatibility and privacy. These tips help you get a cleaner result.
- Use quality 100 for a fully lossless JPEG XL.
- JXL is best as an archive or master format, not for sharing today.
- Keep the JPG too if you need to share the image widely now.
- Higher quality means larger files; balance size against fidelity.
Convert JPG to JXL in your browser
JPG to JXL creates a next-generation JPEG XL copy of a JPG, with better compression at the same quality and an optional fully lossless mode. JPEG XL is aimed at future-proof storage and archives. The .jxl file is encoded locally in your browser, so your photo never leaves your device.
HOW TO CONVERT JPG TO JXL
- Drop one or more .jpg files onto the upload area, or click to browse
- Set the JXL quality, or use 100 for a fully lossless copy
- Click Convert; the JPEG XL is encoded right on your device
- Download each .jxl file on its own, or grab the whole batch
Quality setting guide
Lossless: identical to the source with no quality loss. The largest JXL, ideal for archiving.
Recommended: visually identical to the JPG at a noticeably smaller size. Best for most uses.
Smaller: a light quality trade-off for an even smaller file. Good for large libraries.
Smallest: visible compression. Use only when size is the top priority.
JXL vs JPG, WebP and AVIF
- Versus JPG, JXL is smaller at the same quality and adds lossless and transparency
- Versus WebP, JXL usually compresses better, but WebP is supported far more widely
- Versus AVIF, both are excellent, though AVIF currently has broader browser support
Keep the original JPG too if you still need to share it widely, since JPEG XL support is limited today. For a web-ready format that works everywhere now, try WebP or AVIF. To go back, use JXL to JPG.
Related image tools
These tools solve similar image optimization problems and work the same way: locally in your browser, with no required upload.
- JFIF to JPG: Rename JFIF photos to standard JPG files
- JPEG to JPG: Save JPEG files with the standard .jpg extension
- SVG to JPG: Rasterise SVG vector files into JPG images
- GIF to JPG: Save the first frame of a GIF as a JPG
JPG to JXL FAQ
Why convert JPG to JXL?
JPEG XL offers better compression than JPG at the same quality, plus support for lossless and HDR. It is aimed at future-proof archives and smaller files.
Can I make a lossless JXL?
Yes. Set the quality to 100 for a fully lossless JPEG XL. Lower values produce smaller files that stay visually identical to the JPG.
Will JXL files open everywhere?
Not yet. JPEG XL support is still limited across browsers and apps, so keep the JPG too if you need to share it widely today.
Is my photo uploaded?
No. The JPG is decoded and the JPEG XL is encoded entirely in your browser, so your photo never leaves your device.