About Compress Image
Large photos slow down web pages, fill inboxes, and hit upload limits. Compressing an image keeps the same dimensions but removes data the eye barely notices, so the file gets smaller while still looking good.
Upload a JPG, PNG, or WebP, set the quality level from 1 to 100 (85 is a sensible default), and pick the output format. Lower quality means a smaller file with more visible artifacts; higher quality keeps detail at the cost of size. Converting a photo to WebP often saves the most space for the same visual quality.
Web developers compress hero images and product photos to improve load time and Core Web Vitals; everyone else uses it to fit attachments under email and form limits. For photographs, JPG or WebP work best; for screenshots and graphics with sharp edges or transparency, PNG or WebP preserve quality better.

