JPEG XL: Superior Image Compression (original) (raw)
Smaller Files, Higher Quality, Faster Downloads.
JPEG XL is a new international standard (ISO/IEC 18181) created by the JPEG committee. Unmatched in quality-per-byte, JPEG XL delivers best-of-breed image compression from web quality through lossless.
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SSIMU2: 99.9
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High
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SSIMU2: 99.9
SSIMU2 SCORE:
72.5
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X-Large
SSIMU2 SCORE:
80.0
290 KB
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SSIMU2: 99.9
Med-Low
Medium
Med-High
High
Size:
0.0
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SSIMU2: 99.9
SSIMU2 SCORE:
72.5
300 KB
Small
Medium
Large
X-Large
SSIMU2 SCORE:
80.0
290 KB
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Say goodbye to JPEG artifacts and WebP’s inconsistent results. When quality matters, make it indistinguishable from the original at a fraction of the size — automatically. JPEG XL is visually lossless at less than half the bits-per-pixel of JPEG.
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.
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Transcode existing JPEGs to JPEG XL for an average 20% savings. Plus, it’s reversible. Restore original JPEGs with minimal computation — so fast you can do it on the fly.
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 15% of the image loaded. It supports both saliency progression (visually important areas of the image delivered first) and reordering (middle data sent first).
Fast Encoding & Decoding
Save and Load Without Waiting
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.
Environmental Impact
If all current JPEGs were delivered as JPEG XLs (with an average 20% decrease in file size), we could save:
4.87
GWh
(gigawatt-hours)
per day
Equivalent to powering 487,000 average US homes for an hour and saving 3,500 metric tons of CO2 emissions per day.
And Much More
CMYK & Print Support
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.
High Bit Depth Support
Up to 32 bits per channel for higher precision image representation, enabling more accurate color reproduction — billions instead of millions of colors. Ensure your images maintain their vibrancy in the most demanding applications.
Fully FOSS
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.
Future-Proof
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.
Automatic Visual Fidelity Targeting
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.
Photographic & Non-Photographic Images
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.