Privacy
Weesize privacy: processed on your device with zero uploads, zero trackers, and 100% open source under the MIT license. Free, private, and processed on your device.
1. Local device processing
Files you open are handled entirely in your local browser tab using JavaScript and WebAssembly. They are never posted to an API, never sent across the network, and never written into server storage. This website loads zero analytics scripts, zero advertising trackers, and zero session recorders. You can verify this anytime by opening Developer Tools Network tab. Every tool is free forever under the MIT license.
Privacy is processed entirely on your device. Your original file remains untouched, and nothing is ever uploaded to a server or saved in the cloud.
2. Verification & sources
- No upload: privacy is guaranteed by design because no upload mechanism exists.
- Speed: processing happens instantly on your device with no upload or download delays.
- Quality: you can check your file before saving, and the original remains unchanged.
3. Frequently asked questions
Does “Privacy” upload my file?
Privacy processes your file locally in this browser tab. There is no upload step and no account required.
What will “Privacy” actually change?
No files or telemetry are transmitted to any server.
When is “Privacy” the wrong job?
Disconnect from the internet after load and the app continues working completely.
How do I check the result of “Privacy”?
Full source code is open and verifiable on GitHub.
Can I run “Privacy” with Wi-Fi off?
You can turn off Wi-Fi after loading this page and Privacy still works completely offline.
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Last updated 2026-09-27.