Privacy & terms
Last updated 24 August 2026
Privacy
Blackout runs in your browser. Files you open are parsed, marked, and
burned by JavaScript in this tab. No file, page image, extracted text,
or mark leaves your computer. There is no upload endpoint to send them
to: the site's Content-Security-Policy (connect-src 'self')
makes the browser refuse requests to any other server. You can confirm
that in your browser's DevTools Network panel while you work.
- No accounts, no cookies, no analytics, no trackers.
- No storage. Session state lives in memory and is gone when the tab closes. Nothing is written to localStorage or IndexedDB.
- No third-party requests. Scripts, styles, and the OCR engine are all served from this origin, so the desk keeps working if you go offline after the page loads.
The site is served as static files by Netlify. Like any web host, Netlify keeps standard access logs (IP address, browser user agent, requested URLs) to deliver and secure the service; those logs are governed by the Netlify privacy policy. They never contain your documents, because your documents are never transmitted.
Questions or doubts: read the source or open an issue at github.com/neerajmg/blackout.
Terms of use
Blackout is free, open-source software released under the MIT license and provided as is, without warranty of any kind.
- Automatic detection is incomplete. It will miss things. Review every page yourself before you share a burned file; you are responsible for what you share.
- This tool is not legal advice. Using it does not by itself make a document compliant with any law, regulation, or contractual duty (GDPR, HIPAA, court filing rules, or anything else).
- To the maximum extent permitted by law, the author is not liable for damages arising from use of this tool, including information disclosed by an incomplete redaction.
- The code is MIT-licensed. See the LICENSE file for the exact grant.