image Format
JPEG XL File Format
JPEG XL is a cutting-edge image standard designed to replace legacy JPEG. It features lossless transcoding of existing JPEGs with 20% size savings and rich wide-gamut HDR support.
Drop files here, or click to browse
PDF, DOCX, XLSX, PPTX, JPG, PNG, MP3, MP4, EPUB, ZIP and 100+ more
Technical Specifications
| Extensions | .jxl |
| MIME Types | image/jxl |
| Category | Image |
| Engine Tier | tier1-small-js |
| Magic Bytes / Sniffing | 0xFF 0x0A or 0x00 0x00 0x00 0x0C 0x4A 0x58 0x4C 0x20 |
| Opens With | Affinity Photo 2, libjxl viewers |
| Good For | Future-proof photographic archiving, lossless JPEG compression, and HDR. |
| Not Recommended For | Broad universal browser compatibility without polyfills. |