Safing Portmaster

Portmaster is a free and open-source application firewall from Safing that monitors network connections on a computer. It blocks trackers and malware hosts system-wide and routes DNS queries over DNS-over-TLS by default. Users can set global and per-application rules, including cutting off applications from the internet or restricting connections to certain countries. Downloads are offered for Windows, Debian/Ubuntu and Fedora.

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0 shouts Added Sep 23, 2026 safing.io
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