Convert JPEG to JPEG XL — free, private, in your browser
Decoded with MozJPEG, encoded with libjxl — entirely on your device. No upload, no queue, no watermark.
Why convert JPEG to JPEG XL?
Convert JPEG (the universal photo format. small files, opens everywhere, no transparency) to JPEG XL. Drop files below: decoding and encoding run entirely in your browser via WebAssembly, so images are never uploaded to a server.
How to convert JPEG to JPEG XL
- 1Drop your JPEG files onto the tool above (or click to browse, or paste from the clipboard). Batches are fine.
- 2JPEG XL is pre-selected as the output. Adjust the quality slider — 80 is visually lossless for most photos. Optionally cap the maximum dimension to also downscale.
- 3Each file converts in your browser and shows its new size. Download files individually or grab everything as a ZIP.
JPEG vs JPEG XL
| JPEG | JPEG XL | |
|---|---|---|
| Introduced | 1992 (Joint Photographic Experts Group) | 2021 (JPEG Committee (ISO/IEC)) |
| Compression | Lossy | Lossy + lossless |
| Transparency | No | Yes |
| Animation | No | Yes |
| HDR / wide gamut | No | Yes |
| Browser display | All browsers | Partial support |
| Typical use | Photographs on the web | Archiving photos losslessly |
About JPEG full guide →
The universal photo format. Small files, opens everywhere, no transparency.
About JPEG XL full guide →
The designated JPEG successor: superb quality, lossless JPEG recompression, HDR.
Frequently asked questions
Is it safe to convert JPEG to JPEG XL online?+
With EditItAll, your files are never uploaded: decoding and encoding run inside your browser using WebAssembly (Squoosh-grade codecs (MozJPEG, libwebp, libavif, libjxl, OxiPNG) to decode, Squoosh-grade codecs (MozJPEG, libwebp, libavif, libjxl, OxiPNG) to encode). The images stay on your device from start to finish, and the whole thing works offline once the page has loaded.
Will converting JPEG to JPEG XL lose quality?+
JPEG XL supports both lossy and lossless modes. At the default settings EditItAll uses visually transparent quality; push the slider to 100 for lossless where supported.
Is there a file size or count limit?+
No hard limits and no accounts — processing uses your own device's memory and CPU, so very large images are only constrained by your browser (multi-hundred-megapixel images may fail on low-memory devices). Batch as many files as you like; they are processed in sequence.
Can I convert JPEG XL back to JPEG?+
Yes — use the JPEG XL to JPEG converter, or just change the output format dropdown after dropping files.