What happens to your folder
The folder you choose or drop is read in this tab. No file is sent to a server. The analysis runs in a Web Worker the page starts, on this device's processor.
The result stays in this tab and goes when you close the page. We hold no copy, because nothing was sent.
Check it yourself
- Open the developer tools (Ctrl+Shift+I), go to the Network tab, then start the scan. No new request should appear after the scan begins.
- Or open the scan page, wait a moment (the engine downloads then), turn the internet off and only then drop the folder. The scan finishes without a connection.
- Look at the "Outgoing requests" number on the receipt.
What the counter measures, and what it can't
The number on the receipt reads the page's own resource timing. A request made by a worker does not show up in that list, so the counter alone is not proof.
The proof is the rule the scan page puts on itself: its content security policy (connect-src 'none') tells the browser to forbid connections for both the page and the engine. A test also checks this on a real scan.
What we don't collect
To remove the theme choice, clear this site's data in your browser's settings.
The hosting service that serves the pages may, like any web host, write page requests to its own log. That is about opening a page, not about your folder.
- No analytics tool.
- No cookies. This site stores only your choice of theme (light or dark) in your browser. That choice is not sent anywhere. The files you scan and the results are not stored anywhere.
- No third-party fonts, scripts or images; the fonts come from this site's own server.