# Fort

> Powerful and simple open source firewall for Windows users

- Canonical URL: https://www.fosshunter.com/tools/fort
- JSON export: https://www.fosshunter.com/tools/fort.json
- Website: https://github.com/tnodir/fort
- Category: Cybersecurity
- Open source: yes
- Self-hostable: yes
- Verified listing: no
- Featured: no
- Published at: 2026-05-11T17:40:33+00:00
- Catalog revision: `57662641`

## Repository metrics (point-in-time)

- Repository: https://github.com/tnodir/fort
- Stars: 3679
- Forks: 250
- Open issues: 29
- License: GPL-3.0
- Last push: 2026-11-04T13:12:06+00:00
- Metrics observed at (synced_at): 2026-11-04T14:19:56+00:00
- Archived: no

Tags: Firewall, CyberSecurity, Bandwidth Limiting, Windows
Tech stacks: C++, Inno Setup, Qt

## Features
- Offers flexible network rules per application including wildcards and parent process filtering. *(highlighted)*
- Provides built-in bandwidth limiting and graphical display of traffic statistics. *(highlighted)*
- Features a standalone driver for independent firewall management and blocklist support via zones. *(highlighted)*

## Description

Fort is an effective and robust open source firewall for Windows 7 and later, featuring per application network rules and a standalone driver to manage system traffic and security policies with ease.

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Source: [FOSSHunter — Fort](https://www.fosshunter.com/tools/fort) — cite `synced_at` and the catalog revision when quoting metrics.
Interpretation rules: https://www.fosshunter.com/llms-full.txt