Private by default
Compression runs locally with browser APIs, Web Workers, and WASM encoders instead of a server upload flow.
Private local image compression
Small image files. No upload step.
Crush compresses JPEG, PNG, and WebP images in your browser so source files stay on your device while you prepare production-ready web assets.
Offline-ready
After the first successful load, the PWA can reload offline so routine image prep can continue without a network connection.
Batch focused
Drop multiple images, watch per-file progress, compare savings, and download results individually or as a ZIP.
Format support
Output choices for real web delivery.
- Inputs
- JPEG, PNG, WebP
- Outputs
- AVIF, WebP, JPEG, lossless PNG
- Presets
- High Quality, Balanced, Smallest File