You've saved a .jxl file - maybe exported from an iPhone 16, shared from a photographer's Lightroom, or pulled off a modern website - and Windows throws up a generic "Can't open this file" dialog.

JPEG XL Image Extension screenshots

JPEG XL Image Extension interface, screenshot 1

See all 1 screenshot before you download

How to Download JPEG XL Image Extension

1 Click the DOWNLOAD button for your preferred link (US/EU Main or Mirror). When prompted by your browser, choose "Save" and select a destination folder.
2 We recommend using the mirror links (EU MIRROR / US MIRROR) first - they tend to be faster and more reliable than external sources.
3 Having trouble downloading JPEG XL Image Extension? If the download doesn't start, click the link again or try a different browser (Firefox/Chrome). Some security software may block downloads due to false positives.