PureSnitch

PureSnitch

Free, open-source application firewall for macOS

0upvotes
Launched May 24, 2026

About PureSnitch

PureSnitch is a free, open-source application firewall designed specifically for macOS users seeking a reliable alternative to Little Snitch. Built with transparency and security in mind, it is signed, notarized, and licensed under the MIT license, making it a trustworthy choice for privacy-conscious users. PureSnitch enables users to monitor and control network traffic at the application level, helping to prevent unauthorized data leaks and malicious connections. Its integration into the menu bar offers quick access and easy management, making it ideal for users who want a lightweight yet powerful firewall without the cost of commercial solutions. As an open-source project hosted on GitHub, it appeals to developers and tech-savvy users eager to customize or contribute to its development while ensuring their system's security and privacy.

Screenshots

PureSnitch screenshot 1
PureSnitch screenshot 2
PureSnitch screenshot 3

Pros

  • Free and open-source, ensuring transparency and community support
  • Signed and notarized for enhanced security and macOS compatibility
  • Lightweight and easy to use with a menu bar interface
  • Alternative to proprietary firewalls like Little Snitch
  • Customizable and modifiable for technical users

Cons

  • Potentially fewer features compared to commercial firewalls
  • Limited user interface and automation options
  • May require technical knowledge for full utilization

Use Cases

1Monitoring and controlling network access for individual applications
2Enhancing privacy by blocking unwanted outbound connections
3Developers testing network behavior of their apps on macOS
4Replacing commercial firewalls for budget-conscious users
5Contributing to open-source security projects
6Learning about network security and firewall configuration

Pricing

PureSnitch is completely free and open-source, with no paid tiers or licensing costs involved.

Quick Info

Upvotes0
Comments0
Launched5/24/2026

Topics

MacGitHubMenu Bar Apps

Alternatives

Little Snitch
Radio Silence
LuLu
Hands Off!
GlassWire

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