GitPedia

Opensnitch

OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.

From evilsocket·Updated June 14, 2026·View on GitHub·

•• Key Features • Download • Installation • Usage examples • In the press •• The project is written primarily in Python, distributed under the GNU General Public License v3.0 license, first published in 2017. It has gained significant community traction with 13,764 stars and 642 forks on GitHub. Key topics include: application-firewall, data-breach, firewall, linux, networking.

Latest release: v1.8.0
December 15, 2025View Changelog →
<p align="center"> <small>Join the project community on our server!</small> <br/><br/> <a href="https://discord.gg/btZpkp45gQ" target="_blank" title="Join our community!"> <img src="https://dcbadge.limes.pink/api/server/https://discord.gg/btZpkp45gQ"/> </a> </p> <hr/> <p align="center"> <img alt="opensnitch" src="https://raw.githubusercontent.com/evilsocket/opensnitch/master/ui/opensnitch/res/icon.png" height="160" /> <p align="center"> <img src="https://github.com/evilsocket/opensnitch/workflows/Build%20status/badge.svg" /> <a href="https://github.com/evilsocket/opensnitch/releases/latest"><img alt="Release" src="https://img.shields.io/github/release/evilsocket/opensnitch.svg?style=flat-square"></a> <a href="https://github.com/evilsocket/opensnitch/blob/master/LICENSE.md"><img alt="Software License" src="https://img.shields.io/badge/license-GPL3-brightgreen.svg?style=flat-square"></a> <a href="https://goreportcard.com/report/github.com/evilsocket/opensnitch/daemon"><img alt="Go Report Card" src="https://goreportcard.com/badge/github.com/evilsocket/opensnitch/daemon?style=flat-square"></a> <a href="https://repology.org/project/opensnitch/versions"><img src="https://repology.org/badge/tiny-repos/opensnitch.svg" alt="Packaging status"></a> </p> </p> <p align="center"><strong>OpenSnitch</strong> is a GNU/Linux application firewall.</p> <p align="center">•• <a href="#key-features">Key Features</a> • <a href="#download">Download</a> • <a href="#installation">Installation</a> • <a href="#opensnitch-in-action">Usage examples</a> • <a href="#in-the-press">In the press</a> ••</p> <p align="center"> <img src="https://user-images.githubusercontent.com/2742953/85205382-6ba9cb00-b31b-11ea-8e9a-bd4b8b05a236.png" alt="OpenSnitch"/> </p>

Key features

Download

Download deb/rpm packages for your system from https://github.com/evilsocket/opensnitch/releases

Installation

deb

$ sudo apt install ./opensnitch*.deb ./python3-opensnitch-ui*.deb

rpm

$ sudo dnf install opensnitch*.rpm

Then run: $ opensnitch-ui or launch the GUI from the Applications menu.

Please, refer to the documentation for detailed information.

OpenSnitch in action

Examples of OpenSnitch intercepting unexpected connections:

https://github.com/evilsocket/opensnitch/discussions/categories/show-and-tell

Have you seen a connection you didn't expect? submit it!

In the press

Donations

If you find OpenSnitch useful and want to donate to the dedicated developers, you can do it from the Sponsor this project section on the right side of this repository.

You can see here who are the current maintainers of OpenSnitch:
https://github.com/evilsocket/opensnitch/commits/master

Contributors

See the list

Translating

<a href="https://hosted.weblate.org/engage/opensnitch/"> <img src="https://hosted.weblate.org/widget/opensnitch/multi-auto.svg" alt="Translation status" /> </a>

Contributors

Showing top 12 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from evilsocket/opensnitch via the GitHub API.Last fetched: 6/14/2026