Open-source alternatives to Proxyee

3proxy is a multi-protocol proxy server and network access control gateway. It functions as a network traffic forwarder capable of routing TCP and UDP traffic across HTTP, SOCKS, and various email and file protocols. The project provides specialized capabilities for secure traffic inspection, including the decryption and analysis of HTTPS and TLS streams through certificate spoofing and mutual authentication. It further supports client identity anonymization by routing outbound traffic through recursive upstream proxy chains. The software covers a broad range of network management functions,

An HTTP proxy library for Go

Hetty is an HTTP intercepting proxy and web security research toolkit used to capture, inspect, and modify traffic between a browser and a server. It functions as an HTTP request editor for creating and replaying manual requests to test server behavior and as a project-based traffic logger that isolates network logs across different security research engagements. The tool provides a request-response interception loop that pauses outgoing requests and incoming responses in transit, allowing for manual editing or cancellation. It includes a manual request replay engine to construct and transmit

Pingora is a Rust-based framework for building high-performance network services, including HTTP reverse proxies, layer seven load balancers, and TLS termination proxies. It serves as an asynchronous network library designed to intercept and route HTTP, gRPC, and WebSocket traffic between clients and upstream backend servers. The project enables zero-downtime service updates by handing over listening sockets between processes during binary or configuration upgrades. It utilizes a programmable multi-phase pipeline to modify request and response bodies and headers, and it provides a pluggable T

Whistle is an HTTP debugging proxy that captures, inspects, and modifies traffic through a web-based management interface. It operates as a man-in-the-middle proxy, intercepting HTTP, HTTPS, HTTP/2, WebSocket, and TCP traffic between clients and servers, and provides a plugin-based architecture that extends core functionality with custom rules, UI panels, and protocol handlers at runtime. The project distinguishes itself through a combination of capabilities that go beyond basic traffic inspection. It supports server-side headless operation on Linux, allowing it to intercept traffic for appli

Dev-sidecar is a local HTTP proxy tool designed to optimize development environments by intercepting and modifying network traffic. It functions as a man-in-the-middle service that routes outgoing requests through custom endpoints, enabling developers to accelerate access to remote services, manage package registry connections, and bypass regional connectivity restrictions. The tool distinguishes itself through its ability to perform dynamic DNS resolution overrides and certificate-based traffic inspection, allowing for granular control over network paths and secure data analysis. It employs

This project is a proxy server designed to intercept and modify HTTP and HTTPS traffic for Netease Cloud Music. It functions as network middleware to restore playback for songs and albums restricted by geographic regions and to unlock premium account features, such as high-fidelity audio. The server utilizes header-based privilege injection to spoof premium status and employs conditional content redirection to route requests for unavailable media to alternative source providers. It also incorporates upstream proxy routing and IP parameters to bypass regional access restrictions. Additional c

Yakit is a comprehensive cybersecurity all-in-one platform designed for security assessments. It integrates a suite of core tools including an HTTP interception proxy for real-time traffic modification, an out-of-band interaction detector for verifying remote command execution via TCP, DNSLog, and ICMP, and a reverse shell manager for controlling remote server connections. The platform is distinguished by its dedicated security scripting environment, which allows for the development and execution of custom logic and plugins using a specialized high-performance language. It further extends fun

gost is a multi-protocol proxy tunnel and secure tunneling server designed to route network traffic through encrypted connections. It functions as a traffic obfuscation gateway and a transparent proxy server capable of intercepting TCP and UDP traffic at the IP level. The project also includes a virtual network interface manager for creating TUN and TAP devices to intercept operating system packets. The system distinguishes itself through a chain-based request routing model, allowing traffic to pass through an ordered sequence of proxy nodes. It provides extensive transport-layer encapsulatio

Mitmproxy is an interactive, programmable network proxy engine designed for traffic analysis and protocol manipulation. It functions as a gateway that intercepts, inspects, and modifies network traffic in real-time, supporting HTTP, HTTPS, WebSocket, DNS, and generic TCP or UDP streams. By acting as a trusted certificate authority, the proxy can dynamically generate and sign certificates to decrypt and analyze secure TLS-encrypted connections. The project distinguishes itself through a highly extensible, event-driven architecture that allows users to automate traffic transformation using cust

Nishang is a PowerShell-based offensive security framework designed for red teaming and penetration testing on Windows targets. It functions as a post-exploitation toolkit and payload generator to automate attacks and manage remote targets. The project provides specialized capabilities for bypassing security controls, such as disabling the Antimalware Scan Interface and employing in-memory execution to avoid disk-based detection. It includes a variety of stealthy command and control mechanisms, utilizing non-standard channels like DNS TXT records, ICMP traffic, and webmail for communication a

VictoriaMetrics is a high-performance, scalable time series database and observability platform designed for long-term storage and analysis of metric, log, and trace data. It functions as a unified backend for monitoring ecosystems, offering full compatibility with industry-standard protocols and query languages. The system is built to handle massive data volumes through a distributed architecture that supports horizontal scaling and efficient data lifecycle management. The platform distinguishes itself through a storage engine that utilizes consistent hashing for data sharding and log-struct

spy-debugger is an HTTP proxy debugging tool designed for intercepting and analyzing network traffic from mobile devices, WebViews, and mobile browsers. It functions as a network packet capture tool and a remote browser inspector, allowing users to monitor HTTP and HTTPS requests wirelessly without the need for USB cables. The project distinguishes itself by using script injection to enable remote debugging. It injects JavaScript into HTTP response bodies, providing the ability to inspect HTML and CSS elements and perform live page content editing directly on the mobile screen. Additionally,

Tinyproxy is a lightweight HTTP and HTTPS proxy daemon designed for POSIX operating systems. It functions as a system-level network proxy that manages web traffic with minimal resource overhead. The project supports multiple routing modes, including reverse proxying to forward requests to backend servers and transparent proxying to intercept network traffic without client-side configuration. It also includes a header filter to modify or block specific HTTP headers for privacy and security. The software incorporates network access control based on client subnets and protocol filtering. For sy

proxyee-down is an HTTP proxy download manager and multi-threaded download client. It is designed to route file download requests through an HTTP proxy server to accelerate data retrieval and bypass network restrictions. The tool increases transfer speeds by splitting large files into smaller chunks and downloading them concurrently across multiple TCP connections. It features the ability to update expired or changed source URLs for existing tasks, allowing interrupted downloads to recover and resume without losing previously downloaded segments. The system provides controls for manual downl

Reqable is a cross-platform network debugging tool that functions as an HTTP/HTTPS debugging proxy, a REST API client, and a traffic replay tool. It captures, inspects, and modifies live traffic using a local MITM proxy engine, supports VPN tunnel capture for mobile devices, and provides a Python scripting sandbox for custom traffic processing. The application is available on Windows, macOS, Linux, iOS, and Android. The tool distinguishes itself by combining traffic interception with breakpoint-based request modification, allowing users to pause live HTTP traffic for manual inspection and alt

Evilginx2 is a man-in-the-middle phishing framework designed to proxy authentication traffic between a user and a target web service. By acting as a reverse proxy, the tool intercepts and relays web requests to capture credentials and session tokens in real time, enabling the bypass of multi-factor authentication mechanisms through session cookie hijacking. The platform distinguishes itself by integrating infrastructure orchestration with modular template-driven content injection. It automates the deployment of proxy servers, manages the lifecycle of encryption certificates, and applies conte

Ettercap is a network utility tool used for ARP spoofing, packet filtering, traffic interception, passive scanning, and DHCP hijacking. It functions as a network traffic interceptor and man-in-the-middle packet filter to monitor and manipulate live TCP/UDP connections on a local area network. The project provides specialized capabilities for traffic redirection via ARP cache poisoning, DHCP server spoofing, ICMP redirects, and switch port stealing. It also enables the emulation of rogue services and the decryption of SSH1 session streams by substituting public keys. Additional capabilities i

Bettercap is an extensible framework for network security testing that provides a unified interface for performing man-in-the-middle attacks, network reconnaissance, and traffic manipulation across WiFi, Bluetooth, and wired networks. It operates through a modular attack module system that loads and executes interchangeable offensive or diagnostic modules, supported by event-driven session management and multi-protocol network spoofing capabilities. The framework distinguishes itself by covering a broad range of network domains, including Bluetooth Low Energy scanning and enumeration, CAN-Bus

OWASP ZAP is a dynamic application security testing tool and intercepting HTTP proxy used to find vulnerabilities in web applications. It functions as a penetration testing framework that enables both automated security scanning and manual security testing of running web services. The tool provides a suite of capabilities for analyzing web applications from the outside in, including the ability to capture and modify traffic between a browser and a target application. It is designed to integrate into DevSecOps pipelines to provide consistent security checks across different environments.

HAProxy is a high-performance TCP and HTTP proxy that distributes traffic across multiple backend servers to ensure availability and fault tolerance for critical services. It operates in either TCP or HTTP mode, with an event-driven, single-threaded reactor that handles tens of thousands of connections without context switching, and supports kernel-level data transfer to minimize memory usage and latency. What distinguishes HAProxy is its configuration-file-first design, where all load-balancing rules and runtime behavior are defined in a declarative text file parsed at startup. It embeds a L

UnblockNeteaseMusic is a network gateway and proxy server designed to restore playback for unavailable songs on Netease Cloud Music. It functions as an HTTP traffic proxy that intercepts requests to unlock restricted digital content and bypass regional availability limits. The project acts as a regional content gateway, using custom IP parameters and request rerouting to bypass geographic blocks. It restores access to restricted tracks by diverting network traffic from official servers to alternative music sources. The server manages network traffic routing through domain-based routing and U

This project is a Node.js HTTP proxy server that enables cross-domain API requests from browsers by injecting Cross-Origin Resource Sharing headers into HTTP responses. It functions as a reverse proxy gateway and header manipulator, allowing for the interception and modification of traffic between a client and a target server. The proxy provides mechanisms to bypass browser same-origin policy restrictions through automated header injection. It includes capabilities for origin-based rate limiting and request interception to control traffic flow and prevent unauthorized usage of the proxy servi

Dragonfly is a peer-to-peer file distribution system designed to accelerate large-scale file and container image delivery across clusters. It splits files into small pieces that peers exchange independently, enabling parallel downloads from multiple sources while a central scheduler assigns parent peers based on real-time load metrics. The system integrates with existing tools through an HTTP proxy interface and uses gRPC for internal communication between peers and the scheduler. The system distinguishes itself through automatic integrity verification at the piece level, ensuring every downl

This project is a transparent proxy framework designed for the interception, analysis, and manipulation of secure shell traffic. By terminating client and server connections independently, it provides full visibility into encrypted sessions, allowing for the monitoring of authentication flows, file transfers, and command execution in real time. The tool distinguishes itself through a modular, plugin-based architecture that enables users to inject custom interception logic into the proxy workflow. It supports the creation of ephemeral environments and mock agents in memory, facilitating the si

Bettercap is a modular framework designed for network reconnaissance, security testing, and the execution of man-in-the-middle attacks. It functions as a comprehensive utility for surveying wired and wireless network segments, identifying connected devices, and analyzing communication protocols through real-time traffic interception and manipulation. The platform distinguishes itself through an event-driven architecture that coordinates network state changes and packet-level data through a centralized message pipeline. It provides a programmable scripting engine and an API for orchestrating s

Proxypin is a cross-platform HTTP and HTTPS proxy debugger designed to capture, inspect, and modify network traffic. It functions as a man-in-the-middle interceptor, allowing developers to analyze application data flows and validate network communication during development and testing. The tool distinguishes itself through its focus on mobile and remote device integration, utilizing QR-code-based configuration synchronization to simplify the setup of proxy settings and security certificates. It includes an event-driven scripting engine that enables programmatic manipulation of requests and re