Convert JPG to JPEG XL
Shrink your photos with the next-generation JPEG XL format — typically far smaller than JPG at the same visual quality. Conversion runs entirely on your device; nothing is uploaded.
Drop JPG or PNG files here or click to browse
Processed locally — files never leave your device
How to use
- Drop your JPG or PNG files into the box, or click it to browse.
- Drag the quality slider — lower means smaller .jxl files.
- Encoding runs locally in your browser via WebAssembly.
- Download the converted .jxl images.
Frequently asked questions
What is JPEG XL (.jxl)?
JPEG XL is the successor to JPEG: same visual quality at a fraction of the file size, plus lossless mode, animation and HDR support. All major browsers have supported displaying it since late 2026.
Are my images uploaded anywhere?
No. Encoding runs in your browser via WebAssembly on your own device. Nothing is transmitted, stored or logged.
Which apps can open .jxl files?
All modern browsers display .jxl directly. For editing, support is growing — use this converter's JPG output if you need maximum compatibility elsewhere.
What quality setting should I choose?
75 is a solid default for photos. Use 90+ for near-lossless archiving, 40-60 for web thumbnails. Lower settings dramatically shrink the file.