Compress needs JavaScript

Compression runs entirely in your browser using WebAssembly inside a Web Worker, so the page needs JavaScript enabled.

If you can't enable JS, the original prototype (single-file, no build) still works: open the standalone compressor.

Compress

Compress images. Same format. Smaller files.

or drop images here · paste with ⌘/Ctrl+V

JPGPNGWebPAVIFup to 50 MB

🌱 Lighter files, greener web🔒 Stays on your device⚡ Instant🆓 Free, no sign-up

Will my file format change?

No. JPGs stay JPGs. PNGs stay PNGs. We only convert if you ask.

Are images uploaded anywhere?

Never. Compression runs locally in your browser. Nothing is sent to a server.