This free online image analysis tool gives you a lot of information found in the given image (JPEG, PNG and GIF).
There are a lot of articles about online image compression tools in the net, most of them are very superficial. Usually they end with a simple: "It generates smaller pictures, so it's got to be better."
Learn why such statements are most of the time meaningless, understand the technical background, and find out which tool you should use as of today.
A closer look at how to load different preview images from progressive JPEGs with the help of Ajax and HTTP range requests. Also, @McSodbrenner introduces the Embedded Image Preview (EIP) technique ↬ Faster Image Loading With Embedded Image Previews smashingmagazine.com/2019/08/faster…