Compress Images

How image compression works

JPG and WebP are “lossy” formats: they discard details your eyes barely notice to make files much smaller. The quality slider controls how much is discarded. PNG is lossless, so it keeps every pixel exactly — great for screenshots and logos, but it can’t be squeezed much further without changing format or size.

Recommended settings

For photos on websites, blogs and online shops, use 75–80% quality and a maximum width of 1920 px (or 1280 px for blog content). For images you’ll print, use 90% and keep the original size. For email attachments and messages, 70–80% with 1280 px is usually more than enough.

Why smaller images matter

Large images are the most common reason web pages load slowly. Faster pages keep visitors from leaving and are favoured by search engines, which use loading speed as part of their page experience signals. Smaller files also upload faster and fit within email and form size limits.

Privacy bonus

Compressed images are re-encoded from the pixels only, so hidden photo metadata — like GPS location, camera model and date — is not copied into the new file. That makes compression a simple way to clean photos before sharing them.