Browse free open source Proxy Servers and projects below. Use the toggles on the left to filter open source Proxy Servers by OS, license, language, programming language, and project status.

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  • 1
    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server implements multiple spam filters

    The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are also available for download. NOTICE: V1 development has been stopped at the end of 2014 (1.10.1 build 16060). Possibly there will be done some bugfixing in future. Please upgrade to V2, which is and will be actively maintained.
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    Downloads: 50,433 This Week
    Last Update:
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  • 2
    FlareSolverr

    FlareSolverr

    Proxy server to bypass Cloudflare protection

    FlareSolverr is a proxy server to bypass Cloudflare and DDoS-GUARD protection. FlareSolverr starts a proxy server, and it waits for user requests in an idle state using few resources. When some request arrives, it uses puppeteer with the stealth plugin to create a headless browser (Firefox). It opens the URL with user parameters and waits until the Cloudflare challenge is solved (or timeout). The HTML code and the cookies are sent back to the user, and those cookies can be used to bypass Cloudflare using other HTTP clients. Web browsers consume a lot of memory. If you are running FlareSolverr on a machine with few RAM, do not make many requests at once. With each request, a new browser is launched. It is also possible to use a permanent session. However, if you use sessions, you should make sure to close them as soon as you are done using them. It is recommended to install using a Docker container because the project depends on an external browser that is already included.
    Downloads: 40 This Week
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  • 3
    RELIANOID

    RELIANOID

    Network Load Balancer and Application Security

    RELIANOID is an open core (Debian GNU/Linux based) Application Delivery Controller (ADC) with advanced load balancing features such as Network Load Balancer, Application Load Balancer with SSL offloading, Advance Network Configuration including Virtual Interfaces, VLANs, Bonding with link aggregation, IPv4/IPv6, advanced routing, stateless cluster, web GUI, JSON API and much more! Enterprise Edition Load Balancer is available with extra features such as global service load balancing (gslb), application security including web application firewall (WAF), blacklists, Realtime Blackhole Lists (DNSBL), DDoS protection, stateful clustering, SNMP monitoring, email and SNMP notifications, RBAC, VPN support, and the best Support directly from an expert Team.
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    Downloads: 374 This Week
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  • 4
    gost

    gost

    GO Simple Tunnel, a simple tunnel written in golang

    A simple security tunnel written in Golang. Listening on multiple ports, multi-level forward proxies - proxy chain, standard HTTP/HTTPS/HTTP2/SOCKS4(A)/SOCKS5 proxy protocols support. Probing resistance support for web proxy, TLS encryption via negotiation support for SOCKS5 proxy. Support multiple tunnel types, tunnel UDP over TCP. Local/remote TCP/UDP port forwarding, TCP/UDP Transparent proxy, Shadowsocks Protocol (TCP/UDP), and SNI Proxy. Permission control, load balancing, route control, DNS resolver and proxy, and TUN/TAP Device. In GOST, GOST and other proxy services are considered as proxy nodes, GOST can handle the requests itself, or forward the requests to any one or more proxy nodes. In addition to configuring services directly from the command line, parameters can also be set by specifying the external configuration file with the -C parameter.
    Downloads: 34 This Week
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  • 5
    Pomerium

    Pomerium

    Pomerium is an identity and context-aware access proxy

    Secure, context-aware access that just works. Access internal resources securely. Implement zero trust. Achieve compliance. All without the headache of a VPN. For teams that prefer a hosted solution while keeping data governance. For organizations that need advanced scaling, access control, and governance capabilities. IT and developers need a scalable access control solution to keep users productive, happy, and secure. Pomerium uses identity and context to ensure secure access to internal applications, servers, and infrastructure even from untrusted networks. Pomerium adds authentication and authorization to any application or server, giving IT Management a centralized panel for organization-wide control. Assert compliance in your current architecture without giving up control over data tenancy. Pomerium supports your infrastructure and can be deployed in all environments: cloud, hybrid, or on-prem. From AWS to Kubernetes and more, your internal and 3rd-party apps are covered.
    Downloads: 27 This Week
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  • 6
    SKUDONET

    SKUDONET

    SKUDONET Open Source Load Balancer and Web Application Firewall

    SKUDONET Community Edition is an Open Source Load Balancer and Web Application Firewall (WAF) designed for Linux server environments. Formerly known as Zevenet, it is based on Debian 12.8, providing a stable and secure foundation for reliable application delivery and cybersecurity. This edition is suitable for Linux and Windows server deployments (not for mobile platforms), offering advanced Layer 4 and Layer 7 traffic management with support for up to 250,000 TCP requests per second (L4) and 70,000 HTTPS requests per second (L7). SKUDONET Community Edition includes a full REST JSON API for integration into on-premises or hybrid cloud infrastructures, and it is used in thousands of deployments worldwide. Documentation, administration guides, and API references are available at: https://www.skudonet.com/knowledge-base/
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    Downloads: 247 This Week
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  • 7
    c-icap is an implementation of an ICAP server. It can be used with HTTP proxies that support the ICAP protocol such as the Squid 3.x HTTP proxy server to implement content adaptation/filtering services.
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    Downloads: 178 This Week
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  • 8
    mitmproxy

    mitmproxy

    A free and open source interactive HTTPS proxy

    mitmproxy is an open source, interactive SSL/TLS-capable intercepting HTTP proxy, with a console interface fit for HTTP/1, HTTP/2, and WebSockets. It's the ideal tool for penetration testers and software developers, able to debug, test, and make privacy measurements. It can intercept, inspect, modify and replay web traffic, and can even prettify and decode a variety of message types. Its web-based interface mitmweb gives you a similar experience as Chrome's DevTools, with the addition of features like request interception and replay. Its command-line version mitmdump allows you to write powerful addons and script mitmproxy so it can automatically modify messages, redirect traffic, and perform many other custom commands.
    Downloads: 11 This Week
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  • 9
    OAuth2 Proxy

    OAuth2 Proxy

    A reverse proxy that provides authentication with Google, Azure, etc.

    A reverse proxy and static file server that provides authentication using Providers (Google, GitHub, and others) to validate accounts by email, domain or group. If you are running a version older than v6.0.0 we strongly recommend you please update to the current version. After returning from the authentication provider, the OAuth tokens are stored in the configured session store (cookie, redis, ...) and a cookie is set. The request is forwarded to the upstream server with added user info and authentication headers (depending on the configuration) oauth2-proxy can be configured via command line options, environment variables or config file (in decreasing order of precedence, i.e. command line options will overwrite environment variables and environment variables will overwrite configuration file settings).
    Downloads: 10 This Week
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    Application Monitoring That Won't Slow Your App Down

    AppSignal's Rust-based agent is lightweight and stable. Already running in thousands of production apps.

    Full APM with errors, performance, logs, and uptime monitoring. 99.999% uptime SLA on the platform itself.
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  • 10
    This program allows you to use SSH, TELNET, VNC, FTP and any other Internet application from behind HTTP(HTTPS) and SOCKS(4/5) proxy servers. This "proxifier" provides proxy server support to any app.
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    Downloads: 54 This Week
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  • 11
    NPS

    NPS

    Lightweight, high-performance, powerful intranet penetration proxy

    NPS is a lightweight, high-performance, powerful intranet penetration proxy server, with a powerful web management terminal. Comprehensive protocol support, compatible with almost all commonly used protocols, such as tcp, udp, http(s), socks5, p2p, http proxy. Full platform compatibility (linux, windows, macos, Synology, etc.), support installation as a system service simply. Comprehensive control, both client and server control are allowed. Https integration, support to convert backend proxy and web services to https, and support multiple certificates. Just simple configuration on web ui can complete most requirements. Complete information display, such as traffic, system information, real-time bandwidth, client version, etc. Powerful extension functions, everything is available (cache, compression, encryption, traffic limit, bandwidth limit, port reuse, etc.) Domain name resolution has functions such as custom headers, 404 page configuration, host modification, etc.
    Downloads: 2 This Week
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  • 12
    proxy.py

    proxy.py

    Utilize all available CPU cores for accepting new client connections

    proxy.py is made with performance in mind. By default, proxy.py will try to utilize all available CPU cores to it for accepting new client connections. This is achieved by starting AcceptorPool which listens on configured server port. Then, AcceptorPool starts Acceptor processes (--num-acceptors) to accept incoming client connections. Alongside, if --threadless is enabled, ThreadlessPool is setup which starts Threadless processes (--num-workers) to handle the incoming client connections. Each Acceptor process delegates the accepted client connection to a threadless process via Work class. Currently, HttpProtocolHandler is the default work class. HttpProtocolHandler simply assumes that incoming clients will follow HTTP specification. Specific HTTP proxy and HTTP server implementations are written as plugins of HttpProtocolHandler.
    Downloads: 2 This Week
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  • 13
    go-mitmproxy

    go-mitmproxy

    mitmproxy implemented with golang

    go-mitmproxy is a Golang implementation of mitmproxy that supports man-in-the-middle attacks and parsing, monitoring, and tampering with HTTP/HTTPS traffic. Parses HTTP/HTTPS traffic and displays traffic details via a web interface. Supports a plugin mechanism for easily extending functionality. Various event hooks can be found in the examples directory. HTTPS certificate handling is compatible with mitmproxy and stored in the ~/.mitmproxy folder. If the root certificate is already trusted from the previous use of mitmproxy, go-mitmproxy can use it directly. Map Remote and Map Local support.
    Downloads: 1 This Week
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  • 14
    ClashX

    ClashX

    Rule-based proxy utility for macOS with intuitive menu bar interface

    ClashX — Rule-Based Proxy Utility for macOS ClashX is an open-source, rule-based proxy client designed specifically for macOS. Built on the powerful Clash core engine, it provides an intuitive menu bar interface for managing complex proxy configurations with ease. KEY FEATURES: • HTTP/HTTPS and SOCKS5 proxy protocol support • VMess, Shadowsocks, Trojan, VLESS protocol support • Surge-compatible configuration format • GeoIP-based routing rules • TUN mode for system-wide proxying • URL Scheme support for quick config import • Universal binary — native support for both Intel and Apple Silicon Macs • Lightweight menu bar app with minimal resource usage • macOS 10.14 (Mojave) through macOS 15 (Sequoia) compatibility INSTALLATION: Download the latest .dmg from the Files section, or install via Homebrew: brew tap clashx-pro/clashx && brew install --cask clashx RESOURCES: • Official Website: https://clashx.tech • Documentation & Tutorial: https://clashx.tech/tutorial
    Downloads: 14 This Week
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  • 15
    YAPH - Yet Another Proxy Hunter - intended for validation of any given SOCKS 4/5 or HTTP proxy server for compatibility with TCP tunneling features.
    Downloads: 4 This Week
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  • 16
    ModSecurity is a web application firewall that can work either embedded or as a reverse proxy. It provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis.
    Downloads: 1 This Week
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  • 17
    UUSEC WAF

    UUSEC WAF

    AI and semantic technology Web Application Firewall

    UUSEC WAF Web Application Firewall is an industrial grade free, high-performance, and highly scalable web application and API security protection product that supports AI and semantic engines. It is a comprehensive website protection product launched by UUSEC Technology, which first realizes the three-layer defense function of traffic layer, system layer, and runtime layer.
    Downloads: 3 This Week
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  • 18
    BunkerWeb

    BunkerWeb

    Next-generation and open-source Web Application Firewall (WAF).

    Being a full-featured web server (based on NGINX under the hood), it will protect your web services to make them "secure by default". BunkerWeb integrates seamlessly into your existing environments (Linux, Docker, Swarm, Kubernetes, …) and is fully configurable (don't panic, there is an awesome web UI if you don't like the CLI) to meet your own use-cases . In other words, cybersecurity is no more a hassle.
    Downloads: 5 This Week
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  • 19
    Viralator enhances your network's squid proxy server with a virus scanner. Before a user can download a file, the proxy passes the file to the Viralator script which, in turn, uses a virus scanner to scan, disinfect, or delete the download.
    Downloads: 4 This Week
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  • 20
    J2EP is a reverse proxy running on a J2EE engine. The proxy is written in java and was originally designed with Tomcat in mind, but any engine should work fine. A set of basic mapping rules are included but they can easily be extended to your own needs.
    Downloads: 4 This Week
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  • 21
    Proxy Tester is a proxy list tester and then it generates a wpad.dat file you can use for your browser based on working servers. wpad.dat file selects a random proxy server from the list of provided working proxy servers with each connection request.
    Downloads: 2 This Week
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  • 22
    P3Scan is a fully transparent scanning proxy-server for email clients. It provides scanning of incoming/outgoing email messages for Virus''s, Worms, Trojans, Spam, and harmfull attachments. It can also parse messages for web-bugs.
    Downloads: 3 This Week
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  • 23
    Proxymizer is an anonymizer (a proxy server connecting to other proxy servers), allowing simultaneous use of several public proxy servers, one per single request. Highly extensible and configurable.
    Downloads: 2 This Week
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  • 24
    Web reverse proxy for Single Sign On (SSO). It can apply a security policy (profiles stored in a LDAP directory) to an existing set of applications, consolidate websites, encrypt all communications, rewrite simple URLs...
    Downloads: 1 This Week
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  • 25
    This toolkit has complete security Package start from Tweak manager , Updater , Virus scanner ,Proxy server and many more This will be help full for user from corporate to small user we have already started working on it will completed with 2 months
    Downloads: 1 This Week
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