Privacy Check confirms that Lex Cloak is running locally and that your documents are not leaving your computer. Open it from the Privacy section of Settings to run the check, and you can copy its output to share with support if you ever need help. Nothing about your document is included in that output.
Lex Cloak does its work on your computer. Opening a PDF, reading scanned pages with OCR, finding sensitive text, and writing the redacted copy all happen on your machine. Your documents are not uploaded to a server, and you do not need an account to scan a file and see what it finds.
For sensitive work, that means the document you are redacting stays in your control from open to save.
Privacy Check is built into the app so you can confirm the local-first promise for yourself. Open Settings, go to the Privacy section, and run the check. It reports that Lex Cloak is running locally and that your documents are not leaving your computer.
If you ever contact support, you can copy the Privacy Check output and include it in your message. The output describes the app and your environment only. Nothing about the document you are working on is part of it, so it is safe to share.
Running locally answers where your document goes. The other half of the question is how well the redaction holds up, which comes down to how detection finds and scores sensitive text and how you review it before saving. No tool catches everything on its own, so Lex Cloak is built around a review step where you have the final say.
For the accuracy side of the story, see how detection works. For the broader privacy commitments, the privacy policy has the detail.
Scanning is free and runs locally, so you can try Lex Cloak on a real document without it leaving your computer.
Lex Cloak