Little Snitch

Alerts you when apps phone home

As soon as you’re connected to the Internet, applications can potentially send whatever they want to wherever they want. Most often they do this to your benefit. But sometimes, like in the case of tracking software, trojans, or other malware, they don’t.

But you don’t notice anything, because all of this happens invisibly under the hood.

Little Snitch

makes these Internet connections visible and puts you back in control!

Alert Mode

Decide immediately

Whenever an app attempts to connect to a server on the Internet, Little Snitch shows a connection alert, allowing you to decide whether to allow or deny the connection. No data is transmitted without your consent. Your decision will be remembered and applied automatically in the future.

Silent Mode

Review later

If you are new to Little Snitch, you may get overwhelmed by the vast amount of notifications from applications wanting to connect to the Internet. The all-new Silent Mode was re-built from the ground up to make dealing with them a breeze. It lets you silence all notifications for a while, and make all your decisions later, conveniently with just a few clicks, in one go.

A world of network connections

Network Monitor is your window to the world of network connections. View your Mac’s network activity from three perspectives – a list of apps and servers, a web of connections across the globe and a one hour history of data traffic.

Server, where are you?

Ever wanted to know, where in the world your data is sent to? Network Monitor shows the location of all servers your Mac is connected to on an interactive world map. Animated connection lines provide a clear overview of currently transferred data and blocked connections.

• Real-time traffic diagram
  A detailed traffic history of the last twelve months provides a powerful tool for analyzing individual data connections.
• Corresponding rule
  Figure out quickly why a particular connection was allowed or denied.
• Connection hierarchy
  Connections are grouped hierarchically by domain (e.g. apple.com or google.com) for easy navigation.
• Dark or light appearance
  Choose the appearance that best matches your personal taste.

• Statistics
  Discover processes and servers creating the highest data volume and much more.
• Connection details
  Integrated Research Assistant with code signature check and geographic information.
• Quick filters and location search
  Search for specific locations, or focus on all denied connections using the filters menu.
• Data volumes and bandwidth
  Observe the data volume and bandwidth per process, domain or server.

Subscribe to blocklists

Benefit from the community’s expertise: Subscribe to rule groups from other users and prevent your Mac from connecting to selected ad servers, phishing servers, trackers, etc.

Protecting your privacy has never been easier.

New in Little Snitch 5

Drag and Drop Installation

Install Little Snitch simply via Drag and Drop. No restart of the computer required.

Improved Monitoring

Connection information for up to one year is now captured efficiently in the background, allowing in-depth analysis of past network activity.

Polished in every detail

• Designed for macOS
  The modern design perfectly integrates into macOS and makes Little Snitch simple and fun to use.
• Silent Mode
  Allow or deny connections conveniently with just a single click in Network Monitor.
• Minimizable Connection Alert
  Postpone the decision for a while whether to allow or deny a connection.
• Research Assistant
  The Research Assistant shows first hand information provided by the app developer, explaining the purpose of a connection.
• Code Signature Checks
  For improved security Little Snitch keeps an eye on the code signature of all programs that want to connect to the Internet.
• Network Filter
  Using “Deep Packet Inspection” to reliably identify connections based on the server’s name.