Legal · Last updated September 2026

Privacy Policy

Short version: your files never leave your browser.Bulk File Rename processes filenames locally on your device. We do not receive, store, or see your files or their contents.

1. What we don't collect

  • No file contents and no filenames — renaming happens in your browser's memory.
  • No accounts, so no names, emails, or passwords.
  • No advertising cookies or tracking pixels.

2. What stays on your device

A single theme preference (dark or light) is saved in your browser's local storage so the site remembers your choice. It is never transmitted anywhere and you can clear it at any time by clearing site data.

3. Third-party services

  • Analytics: we use Google Analytics (gtag.js, ID G-KNZJCVV655) to measure page views and general usage. Google may collect your IP address, device, and browsing activity under Google's privacy policy. You can opt out with the Google Analytics opt-out add-on.
  • Fonts: Geist font files load from Google Fonts. Google may log the request (IP address, user agent) under its own privacy policy.
  • ZIP export: when you click download, the JSZip library loads from the jsDelivr CDN. It runs locally after loading; your files are not sent to jsDelivr.
  • Hosting: our host necessarily sees standard web-server logs (IP, requested page, timestamp) to deliver the static pages.

4. Contact form

If you email us via the contact page, your message is handled as ordinary email correspondence and used only to respond to you.

5. Your rights & changes

Because we hold no personal data about you, there is nothing to access or delete — the most privacy-preserving design there is. If this policy changes, the updated version will be posted here with a new revision date. Questions? See about usor contact us.