ProxyBridge

ProxyBridge is an open-source alternative to Proxifier that provides transparent proxy routing for Windows applications. It redirects TCP traffic from specific processes through SOCKS5 or HTTP proxies, with the ability to route, block, or allow traffic on a per-application basis. It operates at the kernel level using WinDivert, compatible with applications that are not proxy-aware without requiring configuration changes.

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• Dual interface. The application includes a full graphical interface and a powerful command line. The graphical interface provides visual control over rules and settings. The command line allows for automation and integration into scripts. Both interfaces offer complete functionality for different usage scenarios.
• Per-process traffic control. The system allows routing, blocking, or allowing traffic for specific applications. Each process can have its own redirection configuration. Rules are applied based on the executable name or process identifier. Granular control ensures that only designated applications use the proxy.
• Universal compatibility. Works with applications that lack native proxy support. No modifications to application settings are required. Traffic is intercepted and redirected transparently. Any software using TCP connections can be handled by the system.
• Multiple proxy protocol support. Supports connections through SOCKS5 and HTTP proxies. Each rule can specify the proxy type and its parameters. Proxy authentication is supported for both protocols. Proxy configuration includes server, port, and credentials when necessary.
• Kernel-level interception. Utilizes the WinDivert library for reliable packet capture. Low-level operation ensures compatibility with all TCP traffic. The interception mechanism does not depend on the application protocol. The implementation guarantees stability and consistent performance.
• Zero application configuration. Applications function without modifications to their settings. Redirection occurs transparently to the software. No adjustments to environment variables or network settings are required. Connections are established normally and intercepted automatically.
• Protocol agnostic. Compatible with any protocol that uses TCP as transport. Works with HTTP, HTTPS, database connections, RDP, SSH, and others. No deep packet inspection or content modification is performed. The transport layer focus ensures maximum compatibility.
• Specific traffic blocking. Ability to block specific applications from accessing the internet. Blocking rules completely prevent outgoing connections. Useful for restricting software that should not have network access. Blocking is applied immediately after configuring the rule.
• Flexible connection rules. Configuration of direct connection, proxy routing, or complete blocking per process. Each application can have its own network behavior. Rules allow for complex routing scenarios. Rule priority determines which one applies in case of a conflict.
• Proxy process exclusion. Prevention of proxy loops by excluding proxy applications. Proxy clients and related software can be excluded from redirection. Prevents proxy traffic from being redirected back to the proxy. Exclusion maintains the stability of the proxy system.

ProxyBridge was developed by InterceptSuite. Development began in 2025 as a personal project. The initial motivation was to create a lighter solution than commercial alternatives. The code is primarily written in C++ for performance and low-level access. The WinDivert library is used for network packet interception. The project remains active with periodic updates and feature improvements.

Alternatives to ProxyBridge:

DNSveil

DNSveil is a secure DNS client for Windows that implements advanced encryption protocols to protect DNS queries.

Price: Free   Size: 84.7 MB   Version: 3.2.9   OS: Windows