Portmaster

Portmaster

Portmaster is a free, open source application firewall and HTTPS proxy for Windows that protects against malicious content getting to your computer. It blocks malware, ads, and trackers from making connections.
Portmaster image
firewall privacy security https-proxy

Portmaster: Free Application Firewall & HTTPS Proxy

Protect your Windows computer from malicious content with Portmaster, a free, open source application firewall and HTTPS proxy that blocks malware, ads, and trackers.

What is Portmaster?

Portmaster is a free, open source application firewall and HTTPS proxy for Windows designed to protect your privacy and security when browsing the web. It functions like an antivirus for your internet connection by analyzing network traffic in real-time and blocking malicious content before it reaches your computer.

Some of the key features of Portmaster include:

  • Blocks ads, trackers and telemetrics that follow you around the web and collect sensitive personal data
  • Prevents connections to malicious sites and servers that spread malware
  • Encrypts your web traffic via HTTPS proxy to prevent man-in-the-middle attacks
  • Lightweight app with little impact on browsing speed
  • Easy to install and set up, no configuration required
  • Completely free and open source

By filtering incoming and outgoing connections, Portmaster gives you control over what data leaves your computer and who can access your online activity. It functions like a firewall designed specifically for web browsing. Portmaster is developed by Safing SPRL and available for Windows 7 and higher.

Portmaster Features

Features

  1. Application firewall
  2. HTTPS proxy
  3. Blocks malware, ads, and trackers
  4. Protects against malicious content
  5. Open source

Pricing

  • Free
  • Open Source

Pros

Free to use

Effective at blocking malicious content

Open source and customizable

Lightweight and easy to use

Cons

Only available for Windows

May block some legitimate content

Limited customization options


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