Privacy

Documents you open in the app never leave your computer. Blackbar reads the file you chose, finds pattern matches, and writes a new file you download. There is no Blackbar account and no document server.

What stays on your PC

Household names you type in Settings are stored in this browser profile’s localStorage under blackbar.saved-names so they apply to the next document. Uninstalling the app or clearing that storage removes them.

What this website sees

This site is hosted on Cloudflare Pages. Opening a page or downloading the installer produces ordinary web logs (time, approximate country, the file requested). Those logs are used to keep the site up. There is no sign-in, no advertising cookie, and no analytics beacon in the page.

What we do not do

• We do not receive the Word, PDF, or text files you open in Blackbar.
• We do not sell personal information.
• We do not require an email address to download or use the app.

Last updated 16 September 2026.