- ChromeOpens JXL: Since 155, Oct 2026
- FirefoxOpens JXL: Since 158, Oct 2026
- SafariOpens JXL: Since 17, still images
- EdgeDoesn't open JXL: Not by default
- Samsung InternetDoesn't open JXL: Not yet
Which browsers open JPEG XL?
As of October 2026, Chrome, Firefox and Safari open .jxl files, while Microsoft Edge and Samsung Internet don’t yet. Here is the version that added it:
| Browser | Since | Details |
|---|---|---|
| Chrome | 155, October 6, 2026 | Decoding only. Chrome 91 to 109 had a test version behind a flag, and Chrome 110 removed it |
| Firefox | 158, October 13, 2026 | Before that, only through Firefox Labs or a setting |
| Safari (Mac, iPhone, iPad) | 17, September 2023 | Still images. Can I use lists animated JXL and progressive loading as unsupported |
| Microsoft Edge | — | Not on by default. Can I use lists Edge 155 as unsupported |
| Samsung Internet | — | Not supported, per Can I use |
To test your own browser, open our sample JXL file in a new tab. If a picture appears, your browser reads JXL. If the file downloads instead, it doesn’t.
How to open a JXL file on Windows and Mac
On Windows, install Microsoft’s free JPEG XL Image Extension from the Microsoft Store. According to its listing, it adds a plug-in that Windows apps such as Photos and File Explorer use to read .jxl files. It isn’t an app you open yourself.
On a Mac, iPhone or iPad, Safari 17 reads JXL. Apple’s WebKit team lists support on iOS 17, iPadOS 17 and macOS Monterey, Ventura and Sonoma, plus apps that show web content through Safari.
On any computer, you can also drag a .jxl file into Chrome 155 or Firefox 158 to view it.
Why you may still need to convert JXL
A browser that shows JXL doesn’t mean every site accepts it. Upload forms, email apps, office programs and older photo editors check the file type, and many only take JPG, PNG or WebP. Keep the JXL as your original and convert a copy:
- JPG for photos you want to share or upload: small, and accepted almost everywhere. Use the JXL to JPG converter.
- PNG when you need every pixel or transparent areas kept. Use the JXL to PNG converter.
Both converters run in your browser, and nothing is uploaded. If your browser reads JXL itself, they use its decoder; otherwise they load one the first time you add a file. For other formats, the image converter handles HEIC, AVIF and WebP too.
What makes JXL different
The format is an international standard, ISO/IEC 18181, from the JPEG committee, the group behind JPG. According to the committee, it:
- saves images lossy (small files) or lossless (every pixel kept);
- can repackage an existing JPG losslessly into a smaller JXL file;
- supports transparency, animation and layers;
- handles HDR and high bit depth images;
- supports progressive coding, so a rough version can appear before the whole file has loaded.
Its reference software is free, open source and royalty-free.
On file size, Mozilla’s release notes say it “generally has better compression than WebP, JPEG, PNG, and GIF.” Google’s Chrome team suggests trying both AVIF and JXL, and recommends JXL in particular for high-fidelity and lossless images.