Privacy

Remove Duplicates Excel is designed for local spreadsheet cleanup. Version one has no account system, no database, no analytics, and no server upload endpoint for your files.

Your Files

When you choose a file, the browser reads it into memory and sends it to a Web Worker in the same page. The workbook is not uploaded by this site, not stored on a server, and not made public. Closing or resetting the page clears the in-memory workbook state.

Downloads

The cleaned file is created as a temporary object URL in your browser. The page revokes old object URLs when you reset, load another file, or leave the page. Your original file is never overwritten.

Third-Party Code

The site uses React for the interface, SheetJS Community Edition for XLSX parsing and writing, and PapaParse for CSV parsing and writing. These libraries are bundled into the static site. The hosted page and static assets are delivered by Vercel after deployment.

Logs

Version one does not intentionally send file names, sheet names, column names, cell contents, duplicate keys, or exported data to analytics or error logging. Static hosting providers may process ordinary request metadata such as IP address, user agent, URL path, and timestamp to deliver the site and protect the service.