Portmaster AlternativesOnly apps categorised as Privacy Tools

The best Privacy Tool alternative to Portmaster is AdGuard, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Portmaster and nine of them are Privacy Tools so hopefully you can find a suitable replacement. Other interesting Privacy Tool alternatives to Portmaster are Pi-hole, Little Snitch, InviZible Pro and OpenSnitch.

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Portmaster alternatives are mainly Privacy Tools, but if you're looking for Firewalls or Network Monitors you can filter on that. Other popular filters include Open Source. These are just examples - use the filter bar below to find more specific alternatives to Portmaster.
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Alternatives list

  1. AdGuard icon

    AdGuard

     290 likes

    Ad-blocking solution eliminating intrusive ads and preventing tracking, with malware protection. Filters pop-ups, banners, and more for clean browsing. Works in the background for ad-free surfing, protects data privacy with Spyware filter, and controls ad display in apps.

    127 AdGuard alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Snapcraft
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Safari
    • Android TV
    • Yandex Browser
    • Opera
    • Mozilla Firefox
    AdGuard screenshot 1
     
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    1
  2. Pi-hole icon

    Pi-hole

     188 likes

    Blocks ads for all connected devices at the DNS layer without client setup. Provides web control, in-app ad and tracker blocking, DHCP and API support, regex filtering, privacy modes, audit logs, and long-term query analytics for network management.

    42 Pi-hole alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Linux
    • Self-Hosted
    • CentOS
    • Fedora
    • Ubuntu
    • Debian
    • Raspberry Pi OS
    • Raspberry Pi
    The Web interface shows how many ads were blocked, a query log, and more.
     
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    1
  4. Little Snitch icon

    Little Snitch

     137 likes

    Firewall application for monitoring and controlling outbound network connections, notifying users of attempted access, supporting rule-based blocking, real-time alerts on suspicious activity, and preventing unauthorized data transmission on macOS systems.

    43 Little Snitch alternatives

    Cost / License

    • Paid
    • Proprietary

    Application types

    Platforms

    • Mac
    • Linux
    Little Snitch screenshot 1
     
  5. Ad
    Screenshot
    AdGuard icon
    AdGuard

    Ad-blocking solution eliminating intrusive ads and preventing tracking, with malware protection. Filters pop-ups, banners, and more for clean browsing. Works in the background for ad-free surfing, protects data privacy with Spywa...

    https://adguard.com
    Learn More
  6. InviZible Pro icon

    InviZible Pro

     26 likes

    InviZible Pro uses DNSCrypt Protocol, Tor and i2pd (I2P Daemon) (PurpleI2P) to achieve maximum security, privacy and comfortable use of the Internet.

    33 InviZible Pro alternatives

    Cost / License

    Application types

    Platforms

    • Android
    • I2P
    • Tor
    InviZible Pro screenshot 1
     
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    1
  7. OpenSnitch icon

    OpenSnitch

     43 likes

    GNU/Linux firewall enabling interactive outbound network filtering, outbound application control, blocking of ads and malware domains, centralized GUI node management, input policy configuration, SIEM integration, real-time alerts, and user-level rule customization.

    38 OpenSnitch alternatives

    Cost / License

    Application types

    Platforms

    • Linux
    OpenSnitch screenshot 1
     
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    1
  8. Minimal Firewall icon

    Minimal Firewall

     13 likes

    Minimal Firewall is a portable Windows firewall frontend that alerts users to internet connections without requiring custom kernel modifications or disabling core isolation, striking a balance between TinyWall's security and SimpleWall's functionality.

    Cost / License

    Application types

    Platforms

    • Windows
    Minimal Firewall screenshot 1
     
9 of 9 Portmaster alternatives