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WindowsSpyBlockerSpybot Anti-Beacon
Free

Free and open source under the MIT licence.

 Freemium

A free edition is available; Home, Plus and Professional editions are paid subscriptions.

Windows Windows
  • Single portable executable with no installer
  • Targets Windows telemetry and tracking specifically
  • Free edition blocks Windows and antivirus telemetry
  • Paid editions cover Office, browsers, games and drivers
  • Windows only
  • Blocking telemetry endpoints can affect some Windows features or updates
  • Windows only
  • Wider coverage requires a paid subscription
Downloadable app Downloadable app
Open source Closed source
License: MIT License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.