Portmaster is Alpha Software - expect hiccups here and there

Get Peace of Mind with
Easy Privacy

Portmaster is a free and open-source application firewall that does the heavy lifting for you. Restore privacy and take back control over all your computer's network activity.

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Alpha Software: Portmaster is in active development

Monitor All Network Activity

Discover everything that is happening on your computer. Expose every connection your applications make and detect evil ones. Finally get the power to act accordingly.

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Alpha Software: Portmaster is in active development

Auto-Block Trackers System-Wide

Protect your whole computer, not just your browser. Block all advertisements and trackers for every application. Easily add your own rules and block individual domains.

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Alpha Software: Portmaster is in active development

Set Global & per‑App Settings

Make your own rules. Completely cut off applications from the Internet. Or block all p2p connections except for certain apps. Or never connect to specific countries. The Portmaster has you covered.

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Portmaster is Alpha Software, treat as such; expect bugs here and there. Early Adopters welcome.

View guide and status for Windows 7, 8 or other Linux 2.4+ distributions. View installer checksums.

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