JPEG XL

Unmatched in quality-per-byte, JPEG XL delivers best-of-breed image compression from web quality through lossless. Unlike its predecessors, JPEG XL delivers best-of-breed lossless compression making pixel-precision smaller than ever — at up to 32 bits per channel. It handily beats WebP on complex content without the 8-bit and size limitations. AVIF? Not even close. Your phone and displays have supported wide-gamut and HDR for years — shouldn’t your file format too? JPEG XL is specifically designed to handle the rich colors of high-precision, high-dynamic range images. With JPEG XL’s state-of-the-art progressive encoding and decoding, you’ll see an image sooner than with other formats — with as little as 1% of the image loaded. It supports both saliency progression (visually important areas of the image delivered first) and reordering (middle data sent first). Nobody likes progress bars. JPEG XL is designed to be blink-of-an-eye fast on today’s systems — no special hardware required. When comparing image size versus encoding speed, JPEG XL wins hands down for high quality and lossless photo-like content. JPEG XL is the first format to offer optimal performance throughout the entire creative workflow, from capture in high bit-depth, HDR, and wide-gamut formats, through editing, web, and print delivery. Because of its industry-leading lossless and lossy compression, JPEG XL provides the most versatile and efficient solution — something AVIF can’t do. Equivalent to powering 487,000 average US homes for an hour and saving 3,500 metric tons of CO2 emissions per day. JPEG XL streamlines image authoring with features like layer support, up to 4099 channels for selection masks and spot colors, and CMYK compatibility for print-oriented use cases. It’s an ideal format for all creative workflows. Up to 32 bits per channel for higher precision image representation, enabling more accurate color reproduction — octillions instead of millions of colors. Perfect for applications that demand the highest fidelity and realism in visual content. Royalty-free and open-source (FOSS) with a BSD-3 license, JPEG XL’s libjxl reference implementation is production-ready, efficient, and robust. With continuous performance updates, you can use it confidently in your apps and platform. JPEG XL is a future-proof format designed to outlast its predecessors. With no inherent limitations on image size or color precision, its flexible framework allows the addition of new features and functionality seamlessly and gradually — over time, as needed. No more JPEG or WebP quality roulette! JPEG XL lets you target visual fidelity, not cryptic parameters. It defaults to visually lossless output, ensuring consistent results without the need for trial and error. While best-in-class for compressing photographic images, JPEG XL is even better at efficiently compressing and storing non-photographic (synthetic) images such as graphics, illustrations, and digital art. JPEG XL was created by the JPEG committee . The committee’s work ensures that JPEG XL meets the highest standards of performance, efficiency, and compatibility, benefiting users across various industries and applications. Learn more about the JPEG Committee’s work and their other projects at their official website: jpeg.org . JPEG XL Test Page Distance vs. Effort Visualizer HDR Test Page JXL Art Gallery This is an unofficial, community-maintained website. Visit the official JPEG Committee JPEG XL site.