Portmaster

What is Portmaster?

Portmaster is a powerful application firewall that empowers users to take control over their computer's network connections. This free and open-source tool offers a comprehensive suite of privacy-enhancing features to monitor, manage, and secure all network activity.

Highlights

• Monitor Network Activity: Expose every connection made by applications on the system, allowing users to identify and address any unwanted or suspicious activity
• Block Unwanted Connections: Easily block specific applications from accessing the internet or connecting to undesirable destinations, providing granular control over network access
• Automated Filtering: Leverage trusted domain blocklists to automatically block ads, trackers, and known malware hosts, enhancing online privacy and security
• DNS-over-TLS: Route all DNS queries through a secure, encrypted DNS-over-TLS service to protect against eavesdropping and manipulation of DNS requests
• Customizable Settings: Tailor the firewall's behavior to individual needs, including the ability to completely cut off applications from the internet or block specific types of connections (e.g., P2P, connections to certain countries).