About
As soon as you connect to the Internet, applications can potentially send whatever they want, wherever they want.Most of the time, they do this for your benefit.But sometimes—for instance, in the case of tracking software, Trojans, or other malware—they don't.Yet you remain none the wiser, because all of this happens invisibly, "under the hood."Little Snitch makes these Internet connections visible and puts you back in control!
**Alert Mode**
Whenever an application attempts to connect to a server on the Internet, Little Snitch displays a connection alert, allowing you to decide whether to allow or deny the connection.No data is transmitted without your consent.Your decision is remembered and automatically applied in the future.
**Silent Mode**
If you are new to Little Snitch, you might feel overwhelmed by the sheer volume of notifications from applications wanting to connect to the Internet.The all-new Silent Mode has been redesigned from the ground up to make managing these alerts effortless.It allows you to temporarily disable all notifications and make all your decisions later—all at once, with just a few clicks.
**The World of Network Connections**
The Network Monitor is your window into the world of network connections.View your Mac's network activity from three distinct perspectives: a list of applications and servers, a global map of connections, and an hourly history of data traffic.
**Server, Where Are You?**
Have you ever wondered where in the world your data is being sent?The Network Monitor displays the location of every server your Mac is connected to on an interactive world map.Animated connection lines provide a clear visual representation of data currently being transmitted, as well as any blocked connections.
**What's New in Little Snitch 5**
A beautiful new design, enhanced traffic statistics, an entirely new command-line interface, simplified drag-and-drop installation, and full compatibility with the latest versions of macOS set Little Snitch 5 apart from its predecessor.Modernized Filtering Engine and User Interface
The primary focus during the development of Little Snitch 5 was the integration of the new network filtering technologies introduced by Apple in macOS Big Sur.The core filtering engine was rebuilt from the ground up to replace the previous kernel-extension-based approach, which is no longer supported by macOS.
Furthermore, Little Snitch has been adapted to the operating system's new, elegant design language, with meticulous attention to detail.New design features—such as a prominent search bar and a newly structured sidebar—go beyond mere aesthetic choices, adding a layer of simplicity and intuitiveness to the user interface.
Drag-and-Drop Installation
Many users have eagerly awaited a simplified, drag-and-drop installation process.Now, restarting your computer is no longer required to install or update Little Snitch.
Enhanced Traffic Monitoring
Little Snitch now efficiently collects connection information in the background.Collecting this data no longer requires running the Network Monitor application, resulting in reduced memory and CPU consumption.
The enhanced monitoring system is now capable of storing traffic data for an entire year—rather than just the last hour, as was the case previously.
Command-Line Interface
System administrators can now configure various program settings via a command-line interface, making Little Snitch scriptable for the first time.
This interface also now offers the ability to report on network connections in a log-based format, enabling detailed and versatile traffic analysis.