3zTPrivacy policy
In short
3zT doesn't ask for an account, doesn't use advertising or tracking cookies, and doesn't store your files. The image and video tools process files inside your browser, on your own device.
Your files
The upscaler, GIF converter, video compressor and original-quality tool read your file in the browser and save the result back to your device. The file isn't sent to 3zT or to anyone else. Temporary copies live in the browser's memory and are released when you close or reload the page.
File transfer
To connect two devices, the tool uses the public PeerJS signalling service and STUN servers (Google, Twilio) to exchange connection details such as network addresses. The files themselves travel directly between the two devices over an encrypted WebRTC connection and don't pass through 3zT. The code stops working when the sender closes the page.
Downloaded components
Tool engines (such as the FFmpeg video engine and the PeerJS connection library) are loaded from this site itself the first time you use them, not from anyone else. The one exception is the Zeus page, which loads its preview fonts from Google Fonts; Google then receives your IP address and browser details, like any web request. No file content is sent.
App downloads
The Download buttons on the My Apps page take the file straight from each app's GitHub releases page. Those requests fall under GitHub's own privacy policy, and 3zT receives nothing about them.
Payments
If you choose to support the site, payment is completed on Ko-fi's page. Ko-fi and PayPal process your payment details under their own privacy policies. 3zT never receives your card details.
Stored in your browser
The site keeps in your browser's local storage your language choice, a few tool preferences (such as graphics card usage) and the last four tools you opened, for the Recently used row. It also keeps a copy of the site's pages and tool engines so it works offline. This stays on your device, and you can clear it at any time in your browser settings.
Hosting
The site is hosted on Cloudflare, which may keep standard technical logs (such as IP address and requested page) to operate and protect the service.
Changes
If this policy changes, the date at the top of this page will be updated.