About compress image
Smaller images load faster, fit email limits and save mobile data. This guide explains how image compression works and how to choose a quality that keeps the picture looking good.
Lossy compression in plain words
JPG and WebP compress by discarding detail the eye is least likely to notice. Lowering the quality slider discards more. Saving at around 70 to 80 percent quality typically cuts a photo to a fraction of its original size with little visible difference, while very low settings cause blocky patches and blurred edges.
Choosing a format
- JPG: best for photographs and widely supported.
- WebP: usually smaller than JPG at the same visual quality, supported by modern browsers.
- PNG: lossless, best for screenshots, logos and graphics with flat colours or transparency.
Getting the best result
Compress once from the original file. Recompressing an already compressed image stacks losses. If a photo is still too large, reduce its dimensions as well, since a photo shown at 800 pixels wide gains nothing from being 4,000 pixels wide.
Private by design
Your images are compressed inside your browser and are not uploaded.
