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

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
    Start building today
  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
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  • 1

    UFTP

    Encrypted UDP based FTP with multicast

    UFTP is an encrypted multicast file transfer program, designed to securely, reliably, and efficiently transfer files to multiple receivers simultaneously. This is useful for distributing large files to a large number of receivers, and is especially useful for data distribution over a satellite link (with two way communication), where the inherent delay makes any TCP based communication highly inefficient. The multicast encryption scheme is based on TLS with extensions to allow multiple receivers to share a common key. UFTP also has the capability to communicate over disjoint networks separated by one or more firewalls (NAT traversal) and without full end-to-end multicast capability (multicast tunneling) through the use of a UFTP proxy server. These proxies also provide scalability by aggregating responses from a group of receivers.
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    Downloads: 1,331 This Week
    Last Update:
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  • 2
    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: 381 This Week
    Last Update:
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  • 3
    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: 120 This Week
    Last Update:
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  • 4
    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: 44 This Week
    Last Update:
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  • Desktop and Mobile Device Management Software Icon
    Desktop and Mobile Device Management Software

    It's a modern take on desktop management that can be scaled as per organizational needs.

    Desktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
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  • 5
    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: 9 This Week
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  • 6
    mpg321 is a completely Free drop-in replacement for mpg123. It has been designed to work as a drop-in replacement for mpg123, for the use of front ends, shell scripts, etc. It does all mp3 decoding using the high-quality integer-only MAD library.
    Downloads: 15 This Week
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  • 7
    A Free SOCKS proxy server for Linux, macos and FreeBSD
    Downloads: 5 This Week
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  • 8
    Middleman is an advanced HTTP/1.1 proxy server with features designed to increase privacy and remove unwanted content.
    Downloads: 2 This Week
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  • 9
    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: 2 This Week
    Last Update:
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  • Entity Management Software Icon
    Entity Management Software

    Filejet’s entity management software organizes & files all of your entity reports: every year, in every jurisdiction – with total visibility.

    Automate everything: entity compliance, registered agent services, annual report and BOI filings, org charts, and DBA/fictitious name and business registration renewals, so you can focus on higher-value work.
    Learn More
  • 10
    httpdbg is an HTTP proxy server which is single-threaded and prints every HTTP request and response to a log file as well as to stdout. It effectively single-threads your browser, which can help in debugging race conditions.
    Downloads: 2 This Week
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  • 11
    Ziproxy is forwarding HTTP proxy server aimed to speed up low-bandwidth connections. It does so by gzipping HTML and using lossy compression of GIF, PNG and JPEG pictures. Ziproxy also offers JPEG 2000 support, transparent proxying and more.
    Downloads: 2 This Week
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  • 12
    Verigio - DNS Proxywall / DNS Firewall

    Verigio - DNS Proxywall / DNS Firewall

    One of the most advanced DNS Proxy and DNS Firewall in one product.

    It is a versatile DNS Proxy server with DNS firewall which filters DNS traffic between local computer and DNS servers with flexible rules, supports blocking by IP geography, caching, import/export rules into XML. With a click of a button acts as a DNS proxy (or DNS server), supports multiple client authentication methods, calculates statistics for DNS servers and proxy clients, supports load balancing between multiple upstream DNS servers.
    Downloads: 1 This Week
    Last Update:
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  • 13
    Myproxy is Simple proxy server It acts as a filtering agent can block unwanted content from web just by adding unwanted hosts to a file
    Downloads: 1 This Week
    Last Update:
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  • 14
    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: 1 This Week
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  • 15
    Absinth is a C++ Object-Oriented Multiprocess Multithreaded Proxy Server. Able to serve a great number of clients as a little LAN
    Downloads: 0 This Week
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  • 16
    freedb proxy server for RISC OS. To allow clients to get freedb information for CDs via a simple API.
    Downloads: 0 This Week
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  • 17
    Aleksoft Proxy allows tunneling TCP/IP traffic through a proxy server located outside of both service provider and consumer firewalls. The proxy consists of two executables, listener and connector, which may run on the same or different computers.
    Downloads: 0 This Week
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  • 18
    Anonymous proxy server. Supports http, https, socks. Can be used as a normal proxy or as a p2p anonymous proxy. Web based drag and drop access configuration. Works with windows, linux. IE, firefox, etc. Visit http://anonproxyserver.sf.net/ for more info.
    Downloads: 0 This Week
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  • 19
    SORBS - Spam and Open Relay Blocking System - NOT http://www.sorbs.net/ This project is to provide a SMTP proxy that automatically checks incoming SMTP connections for origination from a server with an unsecured SMTP server and/or Proxy server.
    Downloads: 0 This Week
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  • 20
    Authenticating proxy server software for Mac OS X. The front-end is written in Obj-C using the Cocoa framework, but the actual proxy daemon application is written in C using plain BSD sockets.
    Downloads: 0 This Week
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  • 21
    BounceThis is an IRC proxy server written in C for Win32 that supports Identd, IP filtering, password protection, remote admin, and more!
    Downloads: 0 This Week
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  • 22
    Proxy Server
    Downloads: 0 This Week
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  • 23
    CLara is a framework that enables you to access the computing power of many graphics processors in an IP-based network using a kind of Client/Proxy/Server model. Its programming interface conforms to the OpenCL 1.0 standard.
    Downloads: 0 This Week
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  • 24
    Caching proxy server with many new interesting and comfortable features.
    Downloads: 0 This Week
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  • 25
    Hive is a reverse proxy server that passes requests from client browsers to a cluster of back-end web servers. It communicates with its monitoring programs residing on each back-end server to achieve precise load-balancing.
    Downloads: 0 This Week
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