You start an application that tells you that a new version is available. You suddenly realize that with every start this application connects to the developer's server. Even statistics information about your computer may be sent this way. Little Snitch helps you avoid this situation.

Trojan horses - i.e. programs transmitting unconsciously data stored on your computer - can be detected by Little Snitch and prevented on the transmission of data.

Features

  • Prevents applications from "phoning home".
  • Protects you from trojans, worms, and other network parasites.
  • Shows which applications send information over the internet.
  • Provides a higher level of security for the paranoid.

What's New

Little Snitch 6 comes with an array of new useful advancements, like DNS encryption, convenient access to blocklists, a redesigned interactive traffic chart, a versatile new Control Center in the menu bar, new hierarchical grouping options in the connection list, new, fun to use sound notifications, and an overall modernized user interface.

Bug Fix for users upgrading from Little Snitch 5

  • When upgrading from Little Snitch 5 to version 6.0.3, the existing rules and setting were not preserved but reset to the factory settings. This bug has been fixed in this version.
  • If you have been affected by this bug, you can restore your previous rules and settings by choosing File > Restore from Backup from the menu bar in the Little Snitch app.
  • A backup file of your Little Snitch 5 configuration can be found in the /Library/Application Support/Objective Development/Little Snitch folder.
  • The name of that backup file is
  • configuration5_YYYY-MM-DD_hh.mm.ss_crashOnLoad-5.xpl
  • (the middle part of the filename is the date/time when the backup was created).

Integrated Blocklists

Effortlessly select from a curated list of blocklists. Install them with a single click to add an extra layer of protection against unwanted connections.

DNS Encryption

Let Little Snitch encrypt your server name queries to shield your online activities from prying eyes.

Control Center in Menu Bar

Quickly access essential network information, recent activity charts, and recently blocked connections at a glance, directly from the menu bar.

Interactive Traffic Chart

Enjoy a redesigned, intuitive real-time traffic chart for a clearer visualization and analysis of network activity.

Hierarchical Connection Grouping

Group connections by application, domain, server, or country to gain deeper insights into network traffic.

Advanced Search and Filters

Swiftly locate specific connections or firewall rules with enhanced search capabilities.

Usage Statistics

Track and optimize your firewall rules based on usage frequency.

Sound Notifications

Stay informed about network activities through customizable acoustic notifications, just by listening. Make connections not only visible but also audible.

Rule Groups

Organize firewall rules by topic to conveniently turn related rules on or off together.

Enhanced Web Application Support

Gain better and more precise control over external connections initiated by websites.

Improved Homebrew Support

Rules for Homebrew executables are now independent of the version number, which is part of their file path, keeping them valid across updates.