The Next-Generation Image Standard.
Superior compression, high dynamic range, and progressive decoding.
Digital imagery is about to get a lot better!
Up to 60% smaller than JPEG at equivalent quality — outperforming WebP and PNG in almost every metric.
Support for Rec. 2020 and beyond. Double the visible light range of common formats. Display colors and highlights that other formats cannot represent.
Progressive loading that feels instantaneous. Images refine their detail as data arrives, perfect for slow connections.
Native support for animation, transparency, and layers. A single format to replace GIF, PNG, and JPEG.
Built by the ISO JPEG committee. No licensing fees, no patents, just an open standard for everyone.
Migrate your entire JPEG library to JXL without a single pixel of generation loss, and back again if needed.
High Dynamic Range (HDR) can make the difference between a dull image and one that feels alive. JPEG XL preserves the full luminosity of the sun and the deepest detail in shadows simultaneously.
Wide Color Gamut unlocks colors that were previously uncapturable. From the electric neon of a city night to the subtle gradients of a tropical flower, JPEG XL covers over 75% of the visible spectrum. Other common formats cover less than 36% of what's visible.
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* PNG and WebP use lossless compression processes, but converting JPEG XL files to either will typically cause loss of HDR data, wide gamut colors, and precision beyond PNG's 16-bit or WebP's 8-bit limits.
Chromium, the open-source browser engine behind Google Chrome and Microsoft Edge, has merged support for JPEG XL. Though behind an ENABLE_JXL_DECODER flag for now, this indicates that JPEG XL may be in a new version of Chrome and Edge in the near future.
The PDF Association announces that JPEG XL will be added to the PDF specification in the future. This will allow JPEG XL to be used in PDF files.
Read More →Cloudinary has released a detailed comparison of JPEG XL compression, showing that JPEG XL can achieve similar quality to PNG at just 60% of the size, while providing 2x the dynamic range of standard JPEG.
Read More →Microsoft releases a JPEG XL extension for Windows, allowing users to view and save JPEG XL files from the Windows File Explorer.
Read More →
JPEG XL can be added to any website, as shown below. Browsers that don't support it yet will use the older JPEG image. No broken pages — just better compression.
Browsers evaluate tags top-to-bottom, picking the first supported format. JPEG XL will be prioritized in Safari & modern browsers.
If image/jxl isn't recognized, the browser will fallback to using the <img> tag.
Only the first supported asset is downloaded. Users get cutting-edge compression without any wasted bandwidth.
Convert any image to JPEG XL using the official libjxl reference implementation.
Download the latest pre-compiled executables directly from the libjxl releases page on GitHub.
cjxl input.jpg output.jxl -q 90 JPEG Committee official page
News, tools, and guides
r/jpegxl Reddit community
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Latest updates and news
ISO/IEC 18181-1:2024
The official reference implementation of JPEG XL
The work-in-progress Rust decoder for JPEG XL
A JXL extension on a file name indicates that the file is a JPEG XL image file. In supported applications, you can use the file in the same way you would use a JPEG or PNG file.
AVIF is another modern image format that competes with JPEG XL. While AVIF is also an improvement upon the legacy image formats, it is generally less advanced when compared to JPEG XL.
You can start using JPEG XL on websites right now! The HTML <picture> element ensures backward compatibility by allowing you to specify multiple image sources - browsers that support JPEG XL will use the JXL version, while others will fall back to legacy formats like JPEG or PNG.