OpenSnitch icon
OpenSnitch icon

OpenSnitch

 37 likes

OpenSnitch is a GNU/Linux application firewall.

OpenSnitch screenshot 1

License model

  • FreeOpen Source

Application types

Country of Origin

  • IT flagItaly
  • European Union flagEU

Platforms

  • Linux
4.7 / 5 Avg rating (7)
37likes
3comments
0news articles

Features

Suggest and vote on features

Properties

  1.  Lightweight
  2.  Privacy focused

Features

  1.  Application Firewall
  2.  Firewall
  3.  Network Filtering
  4.  Ad-free
  5.  No registration required
  6.  Block Trackers
  7.  No Tracking

 Tags

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OpenSnitch information

  • Developed by

    IT flagSimone Margaritelli
  • Licensing

    Open Source (GPL-3.0) and Free product.
  • Written in

  • Rating

    Average rating of 4.7
  • Alternatives

    33 alternatives listed
  • Supported Languages

    • English

AlternativeTo Categories

Security & PrivacyNetwork & AdminWeb Browsers

GitHub repository

  •  11,682 Stars
  •  554 Forks
  •  132 Open Issues
  •   Updated Jun 20, 2025 
View on GitHub

Our users have written 3 comments and reviews about OpenSnitch, and it has gotten 37 likes

OpenSnitch was added to AlternativeTo by CyberSecShark on Jan 15, 2018 and this page was last updated Apr 3, 2024.

Comments and Reviews

   
 Post comment/review
Top Positive Comment
Alx84
Feb 4, 2024
1

It's easy to use. It detects everything (unlike others) and lets you to decide what to do with it. It's an application firewall everyone should have. I'm pretty sure developers deserve a prize, love, hugs and all the rest stuff. Great job!

RemovedUser
Feb 6, 2024
0

I'm using Arch Linux and I really enjoyed using it whilst it worked but I constantly have problems with getting it to start once a new Arch update rolls in. Ubuntu and Red Hat are well supported however.

Alx84
Mar 3, 2024

If some rolling distro tends to update system components all the time (which breaks the software which depends on it) without rebuilding/providing updated software packages - to me this is an issue of a distro / package maintainers, and not the software's issue.

Imagine yourself as a developer who has built some software and distributes its source code over GitHub. You will surely don't want to hear that your software doesn't work in distro A or distro B, just because someone from those distros didn't care to properly maintain it, as other distro components are moving ahead with the time

RemovedUser
Mar 3, 2024

My specific OS is Manjaro. I am using it successfully now, however I created a fresh install of Manjaro and Opensnitch was the first application I installed after that. I was dubious the GUI (which is what I had the problems with) would start with each new application install so created a system image each time. I seem to be OK with it now. It is an essential application in my view so am grateful to the developers. I feel naked without it.

ChamHarouch
Nov 11, 2024

So show them some love and respect with 5 stars.

Nathan
Jul 2, 2020
1

Still a little young but looks promising and works well so far, development has been continued by Gustavo Iñiguez Goia (it seems I can't post a link so see their fork of the original on GitHub)

[Edited by norgaladir, July 11]

What is OpenSnitch?

OpenSnitch is a GNU/Linux application firewall.

Key features:

  • Interactive outbound connections filtering.
  • Block ads, trackers or malware domains system wide.
  • Ability to configure system firewall from the GUI (nftables).
    • Configure input policy, allow inbound services, etc.
  • Manage multiple nodes from a centralized GUI.
  • SIEM integration

Official Links