Private image compressor — zero bytes uploaded
Compresso is a private image compressor by architecture, not policy. Images are processed with the Canvas API on your device. No cloud, no API keys, no third-party servers.
How it works
- Open the app — works offline after first load.
- Compress sensitive photos locally.
- Upload the optimized file only to the destination you choose.
Common questions
- Is it safe for passport or medical photos?
- Yes. Your original never leaves your device during compression.
- Does the website track my images?
- No image data is transmitted. Compression is entirely local.