JPEG, JPEG XL and AVIF: Progressive Loading Compared
Jon Sneyers · Demo · 1 min · 2020 · YouTube title: Progressive decoding: JPEG vs JPEG XL vs AVIF
Why it's here
HN uses it as visual evidence that JPEG XL decodes progressively while AVIF shows nothing until fully loaded.
What it covers
A short side-by-side demo of a large image loading over a slow connection in JPEG, progressive mozjpeg, JPEG XL and AVIF. It shows how each codec renders partial data.