Turn JPEG XL images into small .heif files that iPhones, Macs and Samsung phones open natively. Need a file that opens everywhere instead? Use JXL to JPG.
Want to check the result first? Open it in the HEIC File Viewer - it reads .heif too.
JPEG XL is efficient, but iPhone Photos, most Android galleries and Windows cannot open it reliably yet.
HEIF is the format Apple and Samsung phones already save photos in.
Converting gives you a file of a similar size that drops straight into your phone gallery or iCloud Photos.
| JPEG XL | HEIF | |
|---|---|---|
| Codec | JPEG XL (libjxl) | HEVC (H.265) |
| Typical size | Small | Similar, often a little bigger |
| Transparency | Yes | Yes |
| HDR / wide colour | Yes | Yes - kept with 10-bit |
| Opens on | Safari 17+, Photoshop, GIMP | iPhone, iPad, Mac, Samsung, Windows with extensions |
| Browsers | Safari only | Safari only |
Going the other way? HEIC to JXL. Need test files? Grab one from the JXL sample files.
Drop your JXL files into the box, keep quality 85 and press Convert to HEIF.
Yes. They cannot show JPEG XL themselves, so the page loads its own decoder (libjxl in WebAssembly). Safari 17+ uses its built-in one.
Yes, briefly. The JXL is decoded on your device, then an image copy goes over HTTPS to our server for the HEVC encode and is deleted the moment you download.
Yes. Transparent areas stay transparent in the .heif file.
HEIF is the container, HEIC is HEIF with HEVC images inside - which is what this page makes. Only the extension differs: pick .heic under File extension if you want the iPhone name.
Yes. iPhone, iPad and Mac open .heif natively, and so do Samsung Galaxy phones. Windows needs the free HEIF and HEVC extensions.
Yes, with Bit depth: 10-bit. The HEIF stores the PQ or HLG brightness and BT.2020 colour, and Display P3 photos keep their wide colour. At 8-bit, HDR is tone-mapped to normal colour.
Yes. Every frame shows under the preview - tick the ones you want and each becomes its own HEIF, together in one ZIP.
