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

  • SIEM | API Security | Log Management Software Icon
    SIEM | API Security | Log Management Software

    AI-Powered Security and IT Operations Without Compromise.

    Built on the Graylog Platform, Graylog Security is the industry’s best-of-breed threat detection, investigation, and response (TDIR) solution. It simplifies analysts’ day-to-day cybersecurity activities with an unmatched workflow and user experience while simultaneously providing short- and long-term budget flexibility in the form of low total cost of ownership (TCO) that CISOs covet. With Graylog Security, security analysts can:
    Learn More
  • GWI: On-demand Consumer Research Icon
    GWI: On-demand Consumer Research

    For marketing agencies and media organizations requiring a solution to get consumer insights

    Need easy access to consumer insights? Our intuitive platform is the answer. Get the ultra-reliable research that brands and agencies need to stay ahead of changing consumer behavior.
    Learn More
  • 1
    A tiny (<30K) cgi wrapper that uses a UNIX shell or a Lua VM to provide PHP-like scripting for dynamic web content. It transparently parses form data, including mime-formatted file uploads.
    Leader badge
    Downloads: 10,184 This Week
    Last Update:
    See Project
  • 2
    ooRexx (Open Object Rexx)
    Home of the Open Object Rexx Project. ooRexx is the open source version of IBM's Object REXX Interpreter. It is upwardly compatible with classic REXX and will execute classic REXX programs unchanged. The project is managed by the Rexx Language Association.
    Leader badge
    Downloads: 266 This Week
    Last Update:
    See Project
  • 3
    Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
    Leader badge
    Downloads: 170 This Week
    Last Update:
    See Project
  • 4
    Decodes CGI data from standard input, $QUERY_STRING , and $HTTP_COOKIE. Stores data in lookup table(s) for easy retrieval. Uploads files by copying directly to files created with mkstemp(). Has several handy string conversion functions.
    Downloads: 28 This Week
    Last Update:
    See Project
  • Planfix: Manage Projects, Team's Tasks and Business Processes Icon
    Planfix: Manage Projects, Team's Tasks and Business Processes

    All-in-One Enterprise-Level Software is Now Available for SMB

    Planfix is like a souped-up business process management system for folks who really know their stuff. It's built to help you dive deeper and gives you more options than your run-of-the-mill project and task management systems. Best part? Even small businesses and non-profits can get in on the action.
    Learn More
  • 5
    LibCGI is a simple to use and powerful library written from scratch to assist in the making of CGI appliactions in C. It has support for string manipulation, linked lists, cookies, sessions, GET and POST methods, and more stuff.
    Leader badge
    Downloads: 93 This Week
    Last Update:
    See Project
  • 6
    Cinemagoer

    Cinemagoer

    Python package to retrieve and manage data of the IMDb

    Cinemagoer is a Python package useful to retrieve and manage the data of the IMDb movie database about movies, people, characters and companies. Platform-independent, it can retrieve data from both the IMDb's web server and a local copy of the whole db.
    Downloads: 22 This Week
    Last Update:
    See Project
  • 7
    Fast Artificial Neural Network Library is a free open source neural network library, which implements multilayer artificial neural networks in C with support for both fully connected and sparsely connected networks. Cross-platform execution in both fixed and floating point are supported. It includes a framework for easy handling of training data sets. It is easy to use, versatile, well documented, and fast. Bindings to more than 15 programming languages are available. An easy to read introduction article and a reference manual accompanies the library with examples and recommendations on how to use the library. Several graphical user interfaces are also available for the library.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 8
    Haru is a free, cross platform, open-sourced software library for generating PDF written in ANSI-C. It can work as both a static-library (.a, .lib) and a shared-library (.so, .dll).
    Downloads: 10 This Week
    Last Update:
    See Project
  • 9
    Parse formatted man pages and man page source from most flavors of UNIX. Convert to HTML, ASCII, TkMan, DocBook, and other formats.
    Leader badge
    Downloads: 12 This Week
    Last Update:
    See Project
  • Planview is the leading end-to-end platform for Strategic Portfolio Management (SPM) and Digital Product Development (DPD) Icon
    Planview is the leading end-to-end platform for Strategic Portfolio Management (SPM) and Digital Product Development (DPD)

    Manage project and product portfolios enterprise-wide

    Planview AdaptiveWork (formerly Clarizen) with embedded AI helps you proactively plan and deliver any type and size of portfolio, project, and work. Gain AI-enhanced visibility and insights, drive collaboration, and achieve better business outcomes across your organization.
    Learn More
  • 10
    Ming is an SWF ("Flash") file format output library. It is written in C, with wrappers for C++, Python, and PHP, plus rudimentary support for Ruby and Perl.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 11
    A general purpose implementation of the xmlrpc specification in C.
    Leader badge
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    UnixODBC.pm provides a Perl API for the unixODBC driver manager and a bridge API for unixODBC network queries. The sample text-mode, GUI, and Web clients can manage multiple hosts and DBMSs and create RSS output.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13

    DACS - Distributed Access Control System

    Authentication, Access Control, and Single Sign-On

    DACS,a light-weight single sign-on and role-based security system for Apache or server-based software, provides comprehensive authentication capabilities, and powerful, transparent rule-based authorization checking for any web service or CGI program. The latest release is DACS 1.5.1 (26-Oct-2025) It is not available here! Get it at https://dacs.dss.ca/download.html
    Downloads: 4 This Week
    Last Update:
    See Project
  • 14
    YATS is a PHP C extension that implements a custom templating language, similar to FastTemplate, for clean separation of code/logic from display/html. Coded with emphasis on simplicity and execution speed. Supports GNU Gettext for multi-lingual sites.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 15
    Textual data processing solution for system administrators and Web programmers. The C library allows to manipulate string lists, CGI forms, MIME data, configuration files, logs parsing, regular expressions, date/time parsing, templates rewriting etc.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 16
    HTML template library written in C inspired by perl HTML::Template. Template language has HTML-like tags (tmpl_var, tmpl_if, tmpl_loop, etc.) Use library to build a variable list and pass it to a template.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    viewstate is a decoder and encoder for ASP .Net viewstate data. It supports the different viewstate data formats and can extract viewstate data direct from web pages. viewstate will also show any hash applied to the viewstate data.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    Cheetah is a template engine and code generation tool, written in Python. Web development is its principle use, but Cheetah is very flexible and is also being used to generate C++ game code, Java, sql, form emails and even Python code.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    HTML Code Convert helps speed up the conversion of HTML code into different format including Java Script, JavaServer Pages, Microsoft ASP, PHP, Perl, and the UNIX Shell. It is particularly useful in CGI scripting.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    libtemplate is a very powerful template library written in C. It allows statements like 'if', 'else' or 'print' to be used inside a template. You can set variables from outside or inside the template. PHP and Perl binding will be available.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    Webio is a small-footprint web server, designed for embedding in an application or an embedded system. It includes a tool for generating embedded SSI and CGI routines, and a detailed programmers manual.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    This is an extremely memory and speed optimized CGI library written in ANSI C. It does all the normal CGI functions and also can receive file uploads. It can be used with FastCGI.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    Porcupine is an open-source Python based web application server that provides front-end and back-end revolutionary technologies for building modern data-centric Web 2.0 applications.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Sysmon is a tool to monitorise the state of one or more computers. Its based on a daemon and a php script. The first has to be runned in all boxes you need to check, the second calls the daemon and prints the state into a nice web frontend.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Fast template processor for HTML/XML/text templates. No template language or new tags to learn. Templates can be valid HTML/XML. Easy to use and powerful!
    Downloads: 1 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB