Nuova vita per JPEG XL, che forse arriverà in Chrome e Firefox con la nuova implementazione in Rust.
- Lossless re-compression of JPEG images. This means you can re-compress your current JPEG library without losing information and benefit from a ~30% reduction in file size for free. This is a killer feature that no other format has.
- Support for wide gamut and HDR.
- Support for image sizes of up to 1,073,741,823x1,073,741,824. You won’t run out of image space anytime soon. AVIF is ridiculous in this aspect, capping at 8,193x4,320. WebP goes up to 16K, while the original 1992 JPEG supports 64K.
- Maximum of 32 bits per channel. No other format (except for the defunct JPEG 2000) offers this.
- Maximum of 4,099 channels. Most other formats support 4 or 5, with the exception of JPEG 2000, which supports 16,384.
- JXL is super resilient to generation loss.
- JXL supports progressive decoding, which is essential for web delivery, IMO. WebP or HEIC have no such feature. Progressive decoding in AVIF was added a few years back.
- Support for animation.
- Support for alpha transparency.
- Depth map support.



