Firewalls
Portmaster privacy rating
Application firewall for Windows and Linux that monitors and blocks network connections per app, with DNS filtering, tracker blocklists and an optional paid multi-hop network (SPN).
Summary
Portmaster scores 80 out of 100 (grade B) on the firewalls criteria. It meets 3 of 4 criteria: open source, no trackers or telemetry and no ads or data sales. It does not meet independent audit. It is based in Austria: Not in the Five, Nine or Fourteen Eyes; EU member (GDPR).
Score 80 out of 100. How scoring works
Criteria
- Yes
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Yes
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
No third-party trackers, and the app contacts Safing only for updates, support and SPN login. The website's self-hosted Plausible analytics are cookieless and aggregate-only.
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Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Free core app funded by paid Plus and Pro plans, and the privacy policy states personal data is not sold.
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No
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
No independent audit is published.