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.

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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: 4,729 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: 207 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: 151 This Week
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  • 4
    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: 116 This Week
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    Lightspeed golf course management software

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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: 18 This Week
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  • 6
    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: 15 This Week
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  • 7
    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: 11 This Week
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  • 8
    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: 10 This Week
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  • 9
    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: 19 This Week
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  • 10
    A general purpose implementation of the xmlrpc specification in C.
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    Downloads: 11 This Week
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  • 11
    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: 16 This Week
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  • 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: 3 This Week
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  • 13
    JPEG thumbnail generator. Makes small images from your big ones. Should work on just about any *nix with libjpeg.
    Downloads: 7 This Week
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  • 14
    Automatic Drawing Generation

    Automatic Drawing Generation

    A canvas library for generating technical drawings

    The ADG library (Automatic Drawing Generation) is a set of functions focused on automating the drawing of mechanical parts. It is not a CAD system but a GObject-based library where a custom application can put common CAD entities such as paths, hatches and dimensions, to automatically create technical drawings. A demo application is provided in order to show the capabilities of the canvas. Although it is possible to interact with the library directly in C (that is what the adg-demo program is doing), the canvas is expected to be used from higher level languages, much in the same way as what done in the GNOME stack. Lua bindings based on LGI are already provided out of the box. The adg-lua project, downloadable from the "Files" section, provides Lua programs and demos that leverages these bindings.
    Downloads: 6 This Week
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  • 15
    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: 4 This Week
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  • 16
    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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  • 17
    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: 4 This Week
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  • 18
    rejoin your friends on lan and internet games with one click or join lan games from the internet. see server and player info
    Downloads: 3 This Week
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  • 19
    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: 3 This Week
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  • 20
    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
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  • 21

    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: 2 This Week
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  • 22
    The project provides user a Tcl interface for GD library
    Downloads: 2 This Week
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  • 23
    *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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  • 24
    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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  • 25
    Command-line tool for manipulation with PPM images. It can create a single image from multiple images by mixing them on top of each other. It can also zoom and crop image, or perform all of these operations simultaineously.
    Downloads: 1 This Week
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