Portmaster is a free and open-source application that puts you back in charge over all your computer's network connections. Developed in the EU 🇪🇺, Austria.
Portmaster is Alpha Software, treat as such; expect bugs here and there. Early Adopters welcome.
- Monitor All Network Activity
- Manually Allow or Block Connections
- Auto-Block via Selected Filter Lists
- Enforce DNS-over-TLS
- Configure Settings for Different Networks
- Set Global & per‑App Settings
- Download For Free
- FAQ
All technical details and guides live on the dedicated docs website:
Find out more about Safing, the company behind the Portmaster: