How to use Compress Image
- Choose or drop your image.
- Set the quality and, optionally, a different format.
- Select Compress image and download the smaller file.
Quality, format and size
Compression re-encodes the image at the quality you choose. Around 75 is hard to tell apart from the original for most photos; lower values make smaller files but can show blockiness. WebP is typically 25–35% smaller than JPEG at similar quality and is supported by all modern browsers.
PNG is lossless, so its quality setting does not apply — for photos, switch to JPEG or WebP to make a real saving. To make an image smaller in pixels as well as in file size, use Resize Image.