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 JTxl zip
It is more efficient than PNG for photographic content and includes features like animation and transparency. You can use dedicated tools to convert or
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. JXL can "wrap" a JPEG file
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.