Sample JXL File Download

JPEG XL (.jxl) is a modern image codec designed to replace JPEG outright — it compresses noticeably smaller at the same visual quality, supports lossless recompression of existing JPEGs with no size penalty, and handles both photographic and graphic content well, unlike formats optimized for one or the other.

It also supports high bit-depth, wide color gamut, animation, and progressive decoding in a single format, which is why it's positioned as a genuine successor rather than a niche alternative. Browser and OS support has been expanding through 2025 and 2026, though adoption still lags behind AVIF and WebP in some ecosystems.

Use the sample below to test JXL decoding in your image library or browser, confirm an upload pipeline accepts the format, or benchmark JXL against JPEG and AVIF for your own content.