JPEG XL is an open-standard format designed to outperform PNG and WebP, offering 35–50% better compression than traditional JPEGs without any quality loss.
You can use dedicated tools to convert or re-compress your existing images into the JXL format.
It supports progressive rendering, meaning the image appears faster as it downloads. 2. How to "Zip" Images into JXL
Unlike a standard ZIP file, JXL can "wrap" a JPEG file, reducing its size while allowing you to restore the original JPEG bit-for-bit at any time.
It is more efficient than PNG for photographic content and includes features like animation and transparency.