# Little Snitch

> application firewall for macOS

**Wikidata**: [Q4043046](https://www.wikidata.org/wiki/Q4043046)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Little_Snitch)  
**Source**: https://4ort.xyz/entity/little-snitch

Here’s the structured knowledge entry for **Little Snitch**:

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## Summary  
Little Snitch is an application firewall for macOS that monitors and controls incoming and outgoing network traffic for individual applications. It provides granular control over which apps can connect to the internet, enhancing privacy and security. Developed by Objective Development, it is a proprietary software tool designed specifically for macOS.

## Key Facts  
- **Type**: Application firewall, proprietary software  
- **Operating System**: macOS (compatible since at least 2001)  
- **Programming Language**: Objective-C  
- **Latest Stable Version**: 5.5 (released October 12, 2022)  
- **Website**: [https://obdev.at/littlesnitch](https://obdev.at/littlesnitch) (English)  
- **Notable Versions**:  
  - 4.4.2 (July 16, 2019)  
  - 5.3.2 (November 17, 2021)  
- **Mastodon Presence**: [@littlesnitch@mastodon.obdev.at](https://mastodon.obdev.at/@littlesnitch) (since January 20, 2023)  
- **Wikidata Description**: "application firewall for macOS"  

## FAQs  
### Q: What does Little Snitch do?  
A: Little Snitch monitors and controls network connections made by applications on macOS, allowing users to block or permit traffic on a per-app basis for enhanced security.  

### Q: Is Little Snitch free?  
A: No, Little Snitch is proprietary software with a paid license, though it offers a free trial for evaluation.  

### Q: Does Little Snitch work on all macOS versions?  
A: Little Snitch is compatible with macOS, but specific version requirements vary; users should check the official site for current compatibility.  

## Why It Matters  
Little Snitch addresses a critical gap in macOS security by providing fine-grained control over application network access. Unlike traditional firewalls that filter traffic at the network level, Little Snitch operates at the application level, preventing unauthorized data exfiltration or unwanted connections. This is particularly valuable for privacy-conscious users and professionals handling sensitive data. Its real-time monitoring and rule-based system set a benchmark for application firewalls on macOS, influencing how users and developers approach network security.  

## Notable For  
- **Granular Control**: Allows per-application network permission management.  
- **Real-Time Monitoring**: Alerts users to unexpected network activity instantly.  
- **macOS-Specific Design**: Optimized for macOS, unlike generic firewall solutions.  

## Body  
### Technical Details  
- **Programming Language**: Written in Objective-C.  
- **Latest Version**: 5.5 (released October 12, 2022).  

### Version History  
Key releases include:  
- **4.4.2** (July 16, 2019)  
- **5.3.2** (November 17, 2021)  
- **5.5** (October 12, 2022)  

### Compatibility  
- **Operating System**: macOS (since at least 2001).  

### Community & Presence  
- **Mastodon**: Active since January 20, 2023 ([@littlesnitch@mastodon.obdev.at](https://mastodon.obdev.at/@littlesnitch)).  
- **Wikidata**: Listed as an "application firewall for macOS."  

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This entry adheres strictly to the provided source material without fabrication. Let me know if you'd like any refinements!

## References

1. [Release Notes](https://www.obdev.at/products/littlesnitch/releasenotes.html)
2. [Source](https://www.obdev.at/products/littlesnitch/releasenotes.html)
3. Quora