Browser extension

MailTracker Kill

Block email open-tracking pixels and see who tried to spy on you — HubSpot, Mailtrack, Salesloft, Outreach, Lemlist, and dozens more. Works in Gmail and Outlook on the web. No account. No backend. Your log stays on your device.

Privacy Policy Contact

Kill

  • Network-level block via declarativeNetRequest
  • 55+ rules covering major sales beacons
  • Optional unwrap of click-tracking redirects

Expose

  • In-thread chip: “Tracked by HubSpot”
  • Shame board of top vendors
  • Local log + CSV export

Privacy

  • No analytics, no accounts
  • Host access limited to webmail
  • Email bodies never leave your browser

Independent product. Not affiliated with Google, Microsoft, HubSpot, or Mailtrack.