ProxyBridge

ProxyBridge is a lightweight, open-source universal proxy client (Proxifier alternative) that provides transparent proxy routing for applications on Windows, macOS, and Linux. It redirects TCP and UDP traffic from specific processes through SOCKS5 or HTTP proxies, with the ability to route, block, or allow traffic on a per-application basis. ProxyBridge fully supports both TCP and UDP proxy routing and works at the system level, making it compatible with proxy-unaware applications without requiring any configuration changes.

[!TIP] Need advanced traffic analysis? Check out InterceptSuite - our comprehensive MITM proxy for analyzing TLS, TCP, UDP, DTLS traffic. Perfect for security testing, network debugging, and system administration!

Features
Platform Documentation
Screenshots
Use Cases
License
Author
Credits

💖 Support ProxyBridge Development If you find ProxyBridge useful, consider sponsoring to support ongoing development and new features! <a href="https://github.com/sponsors/InterceptSuite"> <img src="https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%A4&logo=GitHub&color=%23fe8e86" alt="Sponsor InterceptSuite" width="230" height="50"> </a>

Features

Cross-platform - Available for Windows, macOS and Linux
Dual interface - Feature-rich GUI and powerful CLI for all use cases
Process-based traffic control - Route, block, or allow traffic for specific applications
Universal compatibility - Works with proxy-unaware applications
Multiple proxy protocols - Supports SOCKS5 and HTTP proxies
System-level interception - Reliable packet capture at kernel/network extension level
No configuration needed - Applications work without any modifications
Protocol agnostic - Compatible with TCP and UDP protocols (HTTP/HTTPS, HTTP/3, databases, RDP, SSH, games, DTLS, DNS, etc.)
Traffic blocking - Block specific applications from accessing the internet or any network (LAN, localhost, etc.)
Flexible rules - Direct connection, proxy routing, or complete blocking per process
Advanced rule configuration - Target specific processes, IPs, ports, protocols (TCP/UDP), and hostnames with wildcard support
Process exclusion - Prevent proxy loops by excluding proxy applications
Import/Export rules - Share rule configurations across systems with JSON-based import/export

[!CAUTION] Beware of Fake ProxyBridge Downloads

Multiple fake ProxyBridge download sources have been identified. Some of these sources distribute unwanted binaries and malicious software.

❌ Do NOT download ProxyBridge from any third-party or unofficial sources.

✅ Official ProxyBridge sources (only):

GitHub Repository: https://github.com/InterceptSuite/ProxyBridge/

Official Website: https://interceptsuite.com/download/proxybridge

If you prefer not to use prebuilt binaries, you may safely build ProxyBridge yourself by following the Contribution Guide and compiling directly from the official source code.

ProxyBridge does not communicate with any external servers except the GitHub API for update checks (triggered only on app launch or manual update checks);

Platform Documentation

ProxyBridge is available for Windows, macOS, and Linux, with platform-specific implementations:

📘 Windows

View Full Windows Documentation
Technology: WinDivert for kernel-level packet interception
Installer: Available from Releases
Requirements: Windows 10 or later (64-bit), Administrator privileges
GUI: Avalonia-based modern interface
CLI: Full-featured command-line tool with rule file support

📗 macOS

View Full macOS Documentation
Technology: Network Extension framework with transparent proxy
Distribution: Direct download (.pkg installer) from Releases
Requirements: macOS 13.0 (Ventura) or later, Apple Silicon (ARM) or Intel
GUI: Native SwiftUI interface

📙 Linux

View Full Linux Documentation
Technology: Netfilter NFQUEUE for kernel-level packet interception
Distribution: TAR.GZ archive or one-command install from Releases
Requirements: Linux kernel with NFQUEUE support, root privileges (not compatible with WSL1/WSL2)
GUI: GTK3-based interface (optional)
CLI: Full-featured command-line tool with rule support
Quick Install: curl -Lo deploy.sh https://raw.githubusercontent.com/InterceptSuite/ProxyBridge/refs/heads/master/Linux/deploy.sh && sudo bash deploy.sh

Screenshots

macOS

<img src="img/ProxyBridge-mac.png" alt="ProxyBridge macOS Main Interface" width="800"/> ProxyBridge GUI - Main Interface <img src="img/proxy-setting-mac.png" alt="Proxy Settings macOS" width="800"/> Proxy Settings Configuration <img src="img/proxy-rule-mac.png" alt="Proxy Rules macOS" width="800"/> Proxy Rules Management <img src="img/proxy-rule2-mac.png" alt="Add/Edit Rule macOS" width="800"/> Add/Edit Proxy Rule

Windows

GUI

<img src="img/ProxyBridge.png" alt="ProxyBridge Windows Main Interface" width="800"/> ProxyBridge GUI - Main Interface <img src="img/proxy-setting.png" alt="Proxy Settings" width="800"/> Proxy Settings Configuration <img src="img/proxy-rule.png" alt="Proxy Rules" width="800"/> Proxy Rules Management <img src="img/proxy-rule2.png" alt="Add/Edit Rule" width="800"/> Add/Edit Proxy Rule

CLI

<img src="img/ProxyBridge_CLI.png" alt="ProxyBridge CLI" width="800"/> ProxyBridge CLI Interface

Linux

GUI

<img src="img/ProxyBridge-linux.png" alt="ProxyBridge Linux Main Interface" width="800"/> ProxyBridge GUI - Main Interface <img src="img/proxy-setting-linux.png" alt="Proxy Settings Linux" width="800"/> Proxy Settings Configuration <img src="img/proxy-rule-linux.png" alt="Proxy Rules Linux" width="800"/> Proxy Rules Management <img src="img/proxy-rule2-linux.png" alt="Add/Edit Rule Linux" width="800"/> Add/Edit Proxy Rule

CLI

<img src="img/ProxyBridge_CLI-linux.png" alt="ProxyBridge Linux CLI" width="800"/> ProxyBridge CLI Interface

Use Cases

Redirect proxy-unaware applications (games, desktop apps) through InterceptSuite/Burp Suite for security testing
Route specific applications through Tor, SOCKS5 or HTTP proxies
Intercept and analyze traffic from applications that don't support proxy configuration
Test application behavior under different network conditions
Analyze protocols and communication patterns

License

MIT License - See LICENSE file for details

Author

Sourav Kalal / InterceptSuite

Credits

Windows Implementation: This project is built on top of WinDivert by basil00. WinDivert is a powerful Windows packet capture and manipulation library that makes kernel-level packet interception possible. Special thanks to the WinDivert project for providing such a robust foundation.

Based on the StreamDump example from WinDivert: https://reqrypt.org/samples/streamdump.html

The Windows GUI is built using Avalonia UI - a cross-platform XAML-based UI framework for .NET, enabling a modern and responsive user interface.

macOS Implementation: Built using Apple's Network Extension framework for transparent proxy capabilities on macOS.

Linux Implementation: Built using Linux Netfilter NFQUEUE for kernel-level packet interception and iptables for traffic redirection. The GUI uses GTK3 for native Linux desktop integration.

ProxyBridge

Install / Use

README

ProxyBridge

Table of Contents

Features

Platform Documentation

📘 Windows

📗 macOS

📙 Linux

Screenshots

macOS

Windows

GUI

CLI

Linux

GUI

CLI

Use Cases

License

Author

Credits