Little Snitch
Little Snitch is a macOS network monitor and outbound firewall that helps you see and control which apps connect to the internet.
What is Little Snitch?
Little Snitch is a macOS security and privacy app for monitoring and controlling outgoing network connections. It helps users see when apps and background processes try to contact internet servers, then allows or denies those connections with rules the user chooses. This makes it useful for privacy-conscious users, developers, IT professionals, and anyone who wants more visibility into what software is doing online. Common uses include blocking unexpected connections, spotting overly chatty apps, troubleshooting network behavior, and reviewing which domains and services an app contacts. Little Snitch also includes traffic monitoring tools that show current connections and network activity in a more understandable way than system-level logs alone. It is developed by Objective Development Software GmbH as a native Mac utility focused on connection awareness and outbound control.
Key features
- Monitor outgoing internet connections from apps and background processes
- Allow or block connections with customizable rules
- Review live network activity and active connections
- Inspect which servers, domains, and services apps contact
- Get alerts when new or unexpected connections occur
- Use profiles to switch network rules for different situations
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Safety overview
Status: Mostly safe
Little Snitch is legitimate security software, but it works at a sensitive level because it monitors network activity and can block connections system-wide. That behavior is normal for its purpose. Users should expect network-related prompts, background components, and permissions needed to filter or observe traffic. If you use strict blocking rules, some apps, updates, sync features, or login services may stop working until you allow the needed connections.
Recommendation: Keep Little Snitch if you actively use it to monitor or control network traffic on your Mac. If you no longer want outbound filtering or connection alerts, you can remove it, but expect to lose its rules, monitoring views, and any connection-blocking behavior you relied on.
Common paths
/Applications/Little Snitch.app
Support paths
/Library/Application Support/Objective Development/Little Snitch
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