JPEG XL Viewer
Preview JPEG XL (JXL) images online, free.
About
JPEG XL (JXL) is a modern royalty-free image format designed to replace legacy JPEG. It offers excellent compression, lossless JPEG transcoding, progressive decoding and support for wide color gamut and HDR. Browser support is still limited, so a native desktop viewer is the reliable way to open JXL today.
Native support
| Environment | Support |
|---|---|
| Chrome / Edge | Not native |
| Firefox | Not native |
| Safari | Not native |
| Windows Explorer | Not native |
How to Open JPEG XL Files on Windows with VoidImageViewer
Install a JPEG XL viewer
No current browser or Windows Photos build decodes JPEG XL. VoidImageViewer includes native JXL decoding — download the installer or the portable .zip and run it.
Open the .jxl file
Double-click the .jxl file in File Explorer, or right-click it → Open with → Choose another app → Void Image Viewer.
Associate the extension
Tick “Always use this app to open .jxl files” during the first open, so double-click works from then on. The installer can also register associations for all supported formats at once.
Keep a viewer handy
Software that opens JXL is still rare — Windows, macOS Photos and the major browsers all need extra help. With VoidImageViewer installed, any .jxl you download opens with a double-click.
Why Open .jxl Files with VoidImageViewer
Until JPEG XL reaches browsers and Windows itself, a native viewer is the only dependable way to open .jxl — and VoidImageViewer is free, MIT-licensed open source with no ads and no telemetry. It ships native JXL decoding in an app under 5 MB, works fully offline, and publishes SHA256 checksums for every download.
Open JPEG XL files
The online preview lets you view the file. To edit, batch-convert, or set it as your default Windows viewer, use the free desktop app.
Frequently asked
Support is still experimental in most browsers. A native viewer like Void opens JXL without relying on browser support.
Yes — JXL offers better compression and can losslessly transcode existing JPEGs to save space.
Windows Photos and current browsers cannot open JPEG XL. Install VoidImageViewer, which decodes JXL natively: double-click the .jxl file, or right-click it → Open with → Void Image Viewer.
No. JPEG XL (.jxl) is a new format that only shares the JPEG name. It compresses better and can losslessly re-compress existing .jpg files to roughly 20% smaller. Old JPEGs stay .jpg and still open anywhere.
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JPEG XL · .jxl