How to Compress an Image Online Without Losing Quality

For photos, JPG is still a dependable default. For web pages, WebP usually gives a smaller file at similar visual quality. PNG is best when you need transparency or sharp interface graphics.

If the original file is already small, converting formats may matter more than lowering quality. Try WebP first for website images, then compare the result size.

A quality value around 80 is a good starting point for most photos. It often cuts the file size dramatically while keeping visible detail intact.

Resize the image to the actual display size first, then compress it. This usually gives a better result than compressing a huge image aggressively.