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.

  • Our Free Plans just got better! | Auth0 Icon
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
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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: 1,219 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: 385 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: 331 This Week
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  • 4
    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: 55 This Week
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  • Smart Business Texting that Generates Pipeline Icon
    Smart Business Texting that Generates Pipeline

    Create and convert pipeline at scale through industry leading SMS campaigns, automation, and conversation management.

    TextUs is the leading text messaging service provider for businesses that want to engage in real-time conversations with customers, leads, employees and candidates. Text messaging is one of the most engaging ways to communicate with customers, candidates, employees and leads. 1:1, two-way messaging encourages response and engagement. Text messages help teams get 10x the response rate over phone and email. Business text messaging has become a more viable form of communication than traditional mediums. The TextUs user experience is intentionally designed to resemble the familiar SMS inbox, allowing users to easily manage contacts, conversations, and campaigns. Work right from your desktop with the TextUs web app or use the Chrome extension alongside your ATS or CRM. Leverage the mobile app for on-the-go sending and responding.
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  • 5
    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: 62 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: 22 This Week
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  • 7
    xfrpc

    xfrpc

    The xfrpc project is an implementation of frp client written in C

    The xfrpc project is an implementation of frp client written in C language for OpenWRT and IOT system. The main motivation of this project is to provide a lightweight solution for devices with limited resources such as OpenWRT devices which often have limited ROM and RAM space. The project aims to provide a frp client that uses less space and memory than other available options.
    Downloads: 2 This Week
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  • 8
    OpenChange Project

    OpenChange Project

    Microsoft Exchange compatible server and client libraries

    OpenChange is a portable Open Source implementation of Microsoft Exchange server and Exchange protocols. It provides a complete solution to interoperate with Microsoft Outlook clients or Microsoft Exchange servers. OpenChange client-side library is used in existing messaging clients and is the solution in new projects to communicate natively with Microsoft Exchange and Exchange-compatible servers. OpenChange server is a transparent Microsoft Exchange server replacement using native Exchange protocols and does not require any plugin installation in Outlook.
    Downloads: 8 This Week
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  • 9
    A Free SOCKS proxy server for Linux, macos and FreeBSD
    Downloads: 13 This Week
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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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  • 10
    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: 8 This Week
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  • 11
    Middleman is an advanced HTTP/1.1 proxy server with features designed to increase privacy and remove unwanted content.
    Downloads: 4 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: 3 This Week
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  • 13
    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: 3 This Week
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  • 14
    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: 1 This Week
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  • 15
    ICUC, (I see, you see) means "What I see, is you see". ICUC allows 2 or more guys to share 1 telnet connnetion. it's also a detachable BBS(telnet) proxy server. What's more, there are timer and trigger to use, user can make a telnet rubost easily.
    Downloads: 1 This Week
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  • 16
    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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  • 17
    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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  • 18
    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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  • 19
    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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  • 20
    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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  • 21
    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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  • 22
    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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  • 23
    Proxy Server
    Downloads: 0 This Week
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  • 24
    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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  • 25
    Caching proxy server with many new interesting and comfortable features.
    Downloads: 0 This Week
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