Compress images without uploading them

Everything runs inside your browser, so your files never touch a server. That is also why there is no file limit and no queue.

Drop images here

PNG · JPEG · WebP · HEIC · AVIF — as many as you like

Presets

Settings

Output format

Quality 82

Ignored for PNG — it is always lossless.

Max dimension Encoder

This browser

Technical details

Canvas encoding strips EXIF, including GPS coordinates.

AVIF encoding, MozJPEG and HEIC decoding all run as WebAssembly.

Open DevTools → Network and compress a few images.

Runs capability checks locally. Nothing is reported anywhere.