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.

  • The AI workplace management platform Icon
    The AI workplace management platform

    Plan smart spaces, connect teams, manage assets, and get insights with the leading AI-powered operating system for the built world.

    By combining AI workflows, predictive intelligence, and automated insights, OfficeSpace gives leaders a complete view of how their spaces are used and how people work. Facilities, IT, HR, and Real Estate teams use OfficeSpace to optimize space utilization, enhance employee experience, and reduce portfolio costs with precision.
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  • Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight Icon
    Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight

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    CLEAR by Quantum Knight is a FIPS-140-3 validated encryption SDK engineered for enterprises requiring top-tier security. Offering robust post-quantum cryptography, CLEAR secures files, streaming media, databases, and networks with ease across over 30 modern platforms. Its compact design, smaller than a single smartphone image, ensures maximum efficiency and low energy consumption.
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  • 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.
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    Downloads: 10,332 This Week
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  • 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.
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    Downloads: 315 This Week
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  • 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.
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    Downloads: 205 This Week
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  • 4
    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
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  • Collect! is a highly configurable debt collection software Icon
    Collect! is a highly configurable debt collection software

    Everything that matters to debt collection, all in one solution.

    The flexible & scalable debt collection software built to automate your workflow. From startup to enterprise, we have the solution for you.
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  • 5
    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: 20 This Week
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  • 6
    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.
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    Downloads: 73 This Week
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  • 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: 6 This Week
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  • 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: 11 This Week
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  • 9
    A general purpose implementation of the xmlrpc specification in C.
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    Downloads: 7 This Week
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  • 10
    Parse formatted man pages and man page source from most flavors of UNIX. Convert to HTML, ASCII, TkMan, DocBook, and other formats.
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    Downloads: 10 This Week
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  • 11
    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: 2 This Week
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  • 12
    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: 7 This Week
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  • 13
    CookMail is a powerful HTML email form CGI handler. It provides custom HTML output and email messages without the hassle of programming.
    Downloads: 5 This Week
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  • 14
    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: 4 This Week
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  • 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: 4 This Week
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  • 16
    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: 1 This Week
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  • 17

    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: 3 This Week
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  • 18
    nsjava is a loadable c-module which embeds a java virtual machine in aolserver. This module is being developed to support the openacs project - see http://openacs.org, but it could find general application as a web development tool.
    Downloads: 3 This Week
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  • 19
    It is a binary compatibility alternative to Apache module mod_fastcgi. mod_fcgid has a new process management strategy, which concentrates on reducing the number of fastcgi server, and kick out the corrupt fastcgi server as soon as possible.
    Downloads: 2 This Week
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  • 20
    retawq is a multi-threaded web browser for text terminals on Unix-like computers. It is fast, small, nicely configurable and comfortable; e.g. you can keep open as many "virtual windows" as you want and work simultaneously in two of them.
    Downloads: 2 This Week
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  • 21
    *NOTE* Project moved to github.com/cgiwrap/cgiwrap More secure user access to cgi scripting. Runs scripts as the user who owns them. Initial inspiration for suexec. CGIwrap however is server independent.
    Downloads: 1 This Week
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  • 22
    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: 1 This Week
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  • 23
    gdcsim is a modular logic circuit simulator that can run unattended. It detects faults such as glitches and race conditions.
    Downloads: 1 This Week
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  • 24
    Mod_Rexx is an Apache loadable module which interfaces to Rexx. All phases of an Apache request can be processed with Mod_Rexx. It supports Open Object Rexx and Regina Rexx.
    Downloads: 1 This Week
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  • 25
    A C and C++ Library + a compiler to create Adobe Flash SWF movies up to version 9 (v1.8.1). Supports nearly all the tags, includes an ActionScript compiler. Detailed docs and other tools: convert fonts to Flash, decompile Flash, jpg2swf. LASTEST IS 1.8.4
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    Downloads: 1 This Week
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