TinyPNG alternative that never uploads your photos

TinyPNG is fast but sends files to a third party with size and count limits. Compresso runs entirely in your browser — verify zero upload bytes in DevTools.

So funktioniert’s

1. Open the Compresso app
2. Drop images — no account
3. Download optimized files locally

Häufige Fragen

Batch limits?

No server caps — limited only by device memory.

npm install compresso.js

Verwandt

• compress images without uploading
• private image compressor
• squoosh alternative