Little Snitch 2021 Mac powerful and versatile application that enables you to monitor the network traffic and intercept unwanted connection attempts.
Track background activity
As soon as your computer connects to the Internet, applications often have permission to send any information wherever they need to. Little Snitch takes note of this activity and allows you to decide for yourself what happens with this data.
Control your network
Choose to allow or deny connections, or define a rule how to handle similar, future connection attempts. Little Snitch runs inconspicuously in the background and it can even detect network-related activity of viruses, trojans, and other malware.
Filter connections and monitor your network traffic with ease
The Little Snitch Network Monitor utility features a well-designed interface and provide easy-to-read animated and informative diagrams created based on real time traffic information. Hence, you can analyze bandwidth, connectivity status, traffic totals, detailed traffic history for the past hour and more.
You can filter the displayed data based on the process name or server port and group them according to your needs. Little Snitch helps you view traffic peaks, check the average bandwidth and save snapshots for further analysis.
Enable the Silent Mode for a distraction free working environment
The network traffic can be easily captured in the PCAP format while the network activity is displayed along various system events in order to provide a context. There is also a Silent Mode that allows you to get on with your work without being interrupted by any network related notifications. However, you can review the Silent Mode Log to create rules for connection attempts that took place during this period.
On top of that, you can group your rules in different profiles and enable them only when a particular profile is active. Thanks to Little Snitch’s status bar menu, you can choose the desired profile with just a few mouse clicks.Enjoy the versatility of the Automatic Profile Switching function
At the same time, you can take advantage of the Automatic Profile Switching feature and associate different networks with certain profiles. Once the network is detected, the associate profile is automatically enabled. For example, you can use a set of filters when you are at home and more restrictive ruleset when you access the web from an Internet Cafe.
What is more, Little Snitch features a flexible temporary rule system that offers a number of options for rules that are effective only for a limited period of time. Furthermore, Little Snitch automatically analyzes your ruleset and indicates the presence of overlapping, redundant or invalid rules that you might want to delete.
This is a hotfix release for 5.2. It fixes a crash of the Little Snitch Agent when an iOS app runs in the simulator. The effect of this crash was that no connection alert was shown and Internet connections not covered by existing rules would hang. This version fixes a crash in Network Monitor when the “Make Connections Private” action was invoked from the context menu
This version focuses on three main areas:
- The list of „Known Networks“ used for Automatic Profile Switching which was previously shown in a separate window is now integrated into the main window of the Little Snitch application.
- The search and sort performance in the rules window has been greatly improved.
- Added support for executables running from randomized file system paths. Rules for executables in
/var/foldersautomatically ignore random path components. Rules for executables in other locations can be converted manually into „Identifier Rules“ which refer to the process by its code signature identifier and team identifier or SHA256 (for unsigned scripts) instead of the executable’s path.
- Improved detection of Wireguard VPN: Added explicit check for PIA VPN Service.
- It’s now possible to remove other users’ connections shown in Network Monitor after authenticating as an administrator.
- Rule group modifications or resetting to factory rules can now also be authorized via biometric authentication.
- When a selected rule changes its position within the list due to some modification, the scroll position of the list is now adjusted so that the rule remains visible.
- Minor visual improvements in the configuration window.
- Fixed a bug where a connection alert for a terminated process did not disappear after creating a rule.
- Fixed an issue where a suspicious process warning with “validation error 255” was shown in a connection alert.
- Fixed identification of iOS processes running in the Xcode debugger. Rules for these processes now match regardless of random path components.
- Connection Alerts for incoming connections now always create IP address based rules because the remote computer name cannot reliably be known.
- Fixed an issue where two domains were not recognized as equal due to a lowercase/uppercase mismatch.
- Fixed a bug where an error message was shown in the inspector of Network Monitor if no Internet Access Policy was available for a process.
- Fixed a possible crash when showing the list of files available for „Restore from Backup“.
- Fixed startup issues after restarting computers with Fusion Drive.
- Fixed a bug where a temporary rule would overwrite a disabled rule and eventually remove it.
- Fixed a rare crash of the Little Snitch app when searching in rules.
- Mac OS X Kodiak, 10.0 (Cheetah), 10.1 (Puma), 10.2 (Jaguar), 10.3 (Panther), 10.4 (Tiger), 10.5 (Leopard), 10.6 (Snow Leopard)
- OS X 10.7 (Lion), 10.8 (Mountain Lion), 10.9 (Mavericks), 10.10 (Yosemite), 10.11 (El Capitan)
- macOS 10.12 (Sierra), 10.13 (High Sierra), 10.14 (Mojave), 10.15 (Catalina), 11.0 (Big Sur), 12.0 (Monterey) and Later Version.
- Supported Hardware: Intel or Apple Chip (M1) or PowerPC Mac.