r/jpegxl

I was looking into a comparison of several encoder and setting and checking how they compare in image quality. One of the interesting parts is how they handle areas with fine textures. I was interested in how you would rate them relative to each other if you don't see the reference uncompressed image.

Columns correspond to encoders that I used. All images come from a mirrorless camera, they were exported from RAW to PNG, then downsized to 50% of linear dimension and then compressed to 0.6 bpp. At the end, I cropped selected parts and put them into one image.

I will reveal what encoders I used later, but there definitely is libjxl in the comparison. Feel free to share your guesses which encoders were used!

Edit: https://imagepaste.org/i/k7kwg7kk.png

According to these notes (Microsoft Edge 155 web platform release notes (Oct. 8, 2026) - Microsoft Edge Developer documentation | Microsoft Learn), Edge version 155 is supposed to support JPEG XL, released today (October 08, 2026). I have version 155.0.4283.45, but on JPEG XL test pages, I still don't get to see the images. I checked the accept headers and no jxl there either.

Is this some gradual rollout or are the notes wrong, again?