Description:
Host-based application firewall
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Type: Cask
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Latest Version: 6.4.1@0
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Tracked Since: Dec 28, 2025
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Links:
Homepage |
@littlesnitch |
formulae.brew.sh
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Category: Security
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Tags:
firewall
networking
security
privacy
monitoring
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Install:
brew install --cask little-snitch
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About:
Little Snitch is an inbound and outbound connection filter for macOS that monitors network activity and allows you to define granular rules for each application. It provides real-time visibility into network traffic, helping you identify and block unwanted communications. This proactive defense prevents applications from sending data without your explicit consent.
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Key Features:
- Network traffic monitoring with real-time alerts
- Granular rule creation for inbound and outbound connections
- Silent Mode for managing rules without interruptions
- Network Monitor for visualizing traffic patterns and geography
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Use Cases:
- Preventing malware or spyware from exfiltrating data
- Blocking ads and trackers at the network level
- Auditing which applications are communicating with remote servers
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Alternatives:
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LuLu
– Open-source alternative, though Little Snitch offers more mature features and a refined UI
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TripMode
– Focuses primarily on blocking background data usage to save bandwidth
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| Detected |
Version |
Rev |
Change |
Commit |
| Jun 22, 2026 12:01pm |
6.4.1 |
0 |
VERSION_BUMP |
0a6261d6 |
| Jun 21, 2026 10:29pm |
6.4 |
0 |
VERSION_BUMP |
4d74bcdd |
| Sep 15, 2025 7:12pm |
6.3.1 |
0 |
VERSION_BUMP |
4a6aa282 |
| Sep 9, 2025 10:44am |
6.3 |
0 |
VERSION_BUMP |
b0542184 |
| Aug 1, 2024 9:44am |
6.0.4 |
0 |
VERSION_BUMP |
ed88fa19 |
| Jul 24, 2024 12:48pm |
6.0.3 |
0 |
VERSION_BUMP |
656a993a |
| Jun 26, 2024 9:39am |
6.0.2 |
0 |
VERSION_BUMP |
59eef71d |
| Jan 15, 2024 6:48am |
5.7.3 |
0 |
VERSION_BUMP |
e6257414 |
| Jan 9, 2024 12:59pm |
5.7.2 |
0 |
VERSION_BUMP |
16a5f7e6 |
| Sep 19, 2023 11:16am |
5.7.1 |
0 |
VERSION_BUMP |
e2a0772e |
| Apr 19, 2023 1:23pm |
5.6 |
0 |
VERSION_BUMP |
3831c04b |
| Oct 13, 2022 4:08pm |
5.5 |
0 |
VERSION_BUMP |
ae6feb76 |
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