Open Source C Software - Page 39
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C Software
Browse free open source C Software and projects below. Use the toggles on the left to filter open source C Software by OS, license, language, programming language, and project status.
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Sudo
Utility to execute a command as another user
Sudo is a program designed to allow a sysadmin to give limited root privileges to users and log root activity. The basic philosophy is to give as few privileges as possible but still allow people to get their work done. Before building sudo, make sure you have the current version. The latest sudo may always be gotten via anonymous ftp from ftp.sudo.ws in the directory /pub/sudo/ or from the sudo website. -
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SuiteSparse
The official SuiteSparse library: a suite of sparse matrix algorithms
The official SuiteSparse library: a suite of sparse matrix algorithms authored or co-authored by Tim Davis, Texas A&M University. -
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Tini
A tiny but valid `init` for containers
All Tini does is spawn a single child (Tini is meant to be run in a container), and wait for it to exit all the while reaping zombies and performing signal forwarding. It protects you from software that accidentally creates zombie processes, which can (over time!) starve your entire system for PIDs (and make it unusable). It ensures that the default signal handlers work for the software you run in your Docker image. For example, with Tini, SIGTERM properly terminates your process even if you didn't explicitly install a signal handler for it. It does so completely transparently! Docker images that work without Tini will work with Tini without any changes. Add Tini to your container, and make it executable. Then, just invoke Tini and pass your program and its arguments as arguments to Tini. -
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UACMe
Defeating Windows user account control
Run executable from command line, akagi32 [Key] [Param] or akagi64 [Key] [Param]. First parameter is a number of methods to use, second is an optional command (executable file name including full path) to run. The second parameter can be empty - in this case, the program will execute elevated cmd.exe from the system32 folder. Since 3.5.0 version all "fixed" methods are considered obsolete and removed altogether with all supporting code/units. If you still need them. This tool shows ONLY popular UAC bypass method used by malware, and re-implement some of them in a different way improving original concepts. There are different, not yet known to the general public, methods. This tool is not intended for AV tests and not tested to work in aggressive AV environment, if you still plan to use it with installed bloatware AV soft, use it at your own risk. -
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Ulfius HTTP Framework
Web Framework to build REST APIs, Webservices or any HTTP endpoint
HTTP Framework for REST Applications in C. Based on GNU libmicrohttpd for the backend web server, Jansson for the json manipulation library, and Libcurl for the SMTP client API. Used to facilitate the creation of web applications in C programs with a small memory footprint, as in embedded systems applications. You can create web services in HTTP or HTTPS mode, stream data, or implement server web sockets. -
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bmon
Bandwidth monitor and rate estimator
bmon (Bandwidth Monitor) is a command-line network monitoring tool that provides detailed bandwidth statistics for network interfaces. -
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iOS WebKit Debug Proxy
A DevTools proxy for iOS devices
The ios_webkit_debug_proxy (aka iwdp) proxies requests from usbmuxd daemon over a websocket connection, allowing developers to send commands to MobileSafari and UIWebViews on real and simulated iOS devices. iOS WebKit Debug Proxy works on Linux, MacOS & Windows. The iOS Simulator is supported, but it must be started before the proxy. The simulator can be started in XCode, standalone, or via the command line. ios_webkit_debug_proxy can be used with many tools such as Chrome DevTools and Safari Web Inspector. To use Chrome DevTools it's the recommendation to use the RemoteDebug/remotedebug-ios-webkit-adapter project, which has instructions on how to setup Chrome to remote debug iOS devices, much similar to Android debugging. You can use Safari Web Inspector extracted from Webkit sources, e.g. artygus/webkit-webinspector. Another option is mozilla/valence which enables Firefox DevTools to be used with iOS. -
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libavif
Library for encoding and decoding .avif files
libavif is a portable, open-source C library that implements encoding and decoding for the AVIF (AV1 Image File Format), offering a robust, production-ready way to work with AVIF images across platforms. It supports all AV1-supported YUV formats and bit-depths, including alpha (transparency), and includes command-line tools (avifenc and avifdec) to easily convert to/from AVIF from common image formats like JPEG, PNG, or Y4M. The API is straightforward, allowing applications to integrate AVIF support natively — creating, decoding, compressing, or decompressing images programmatically. Recent developments have added experimental support for HDR gain maps, improved color-space handling (including wide color gamut and high bit depth), and better quality tuning modes for encoding, making libavif a cutting-edge tool for high-quality image compression. -
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libirecovery
Library and utility to talk to iBoot/iBSS via USB on Mac OS X, Windows
A cross-platform FOSS library is written in C to communicate with iOS devices natively. The libirecovery library allows communication with iBoot/iBSS of iOS devices via USB. -
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librdkafka
The Apache Kafka C/C++ library
librdkafka is a C library implementation of the Apache Kafka protocol, providing Producer, Consumer and Admin clients. It was designed with message delivery reliability and high performance in mind, current figures exceed 1 million msgs/second for the producer and 3 million msgs/second for the consumer. librdkafka is licensed under the 2-clause BSD license. KAFKA is a registered trademark of The Apache Software Foundation and has been licensed for use by librdkafka. librdkafka has no affiliation with and is not endorsed by The Apache Software Foundation. SASL (GSSAPI/Kerberos/SSPI, PLAIN, SCRAM, OAUTHBEARER) support. Guaranteed API stability for C & C++ APIs (ABI safety guaranteed for C). Runs on Linux, MacOS X, Windows, Solaris, FreeBSD, AIX, and more. Commercial support is available from Confluent Inc. -
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mbpfan
A simple daemon to control fan speed on all MacBook/MacBook Pros
mbpfan is a lightweight daemon for Linux that provides fan speed management for MacBook and MacBook Pro hardware. It reads temperature data via the coretemp kernel module and drives fan speeds through the applesmc interface, making it especially valuable for users running Linux natively on Apple hardware where automatic thermal control may be lacking. The daemon supports multiple processors and multiple fans, allowing flexible configurations for complex Mac models, and aims to keep systems both cool and quiet by dynamically adjusting fan behavior. While originally based on Allan McRae’s mbpfan, this enhanced version expands compatibility and tuning options. It’s especially useful on Linux installations where default drivers don’t effectively communicate with Apple’s proprietary sensor and fan hardware. Users often pair it with custom configuration profiles to match their preferred balance of noise and temperature control. -
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pgAudit
PostgreSQL Audit Extension
pgaudit is a PostgreSQL extension that provides detailed session and object-level auditing to meet compliance and security requirements. It extends the standard PostgreSQL logging capabilities by capturing structured audit logs for activities such as DML, DDL, and role changes. Designed for environments that require traceability, pgaudit makes it easier to track who did what, when, and where in a database. -
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repmgr
A lightweight replication manager for PostgreSQL (Postgres)
repmgr is a management tool for PostgreSQL replication, providing monitoring, failover, and administrative capabilities for streaming replication setups. It simplifies the configuration of primary/standby clusters and automates failover processes for high availability. repmgr is widely used in production environments where database resilience and minimal downtime are critical. -
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xmake
A cross-platform build utility based on Lua
A cross-platform build utility based on Lua. Xmake is a lightweight, cross-platform build utility based on Lua. It is very lightweight and has no dependencies due to the integration of the Lua runtime. It uses xmake.lua to maintain project builds with a very simple and readable syntax. We can use it to build projects directly like Make/Ninja or generate project files like CMake/Meson. It also has a built-in package management system to help users integrate C/C++ dependencies. The official repository provides nearly 500+ packages with one-click compilation on all platforms. Full platform package support, support for cross-compiled dependent packages. Support package virtual environment using xrepo env shell. Support self-built package repositories and private repository deployment. Third-party package repository support for repositories such as: vcpkg, conan, conda, etc. Supports automatic pulling of remote toolchains. -
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Cooperative Linux
Run Linux on Windows or other OSes, natively.
Cooperative Linux is the first method for optimally running Linux on Windows and other operating systems natively. It is a port of the Linux kernel and support code that allows it to run cooperatively without emulation along with another operating system. -
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Small Linux console getty that is started on the Linux text console, asks for a login name and then tranfers over to /bin/login. Is extended to allow automatic login and starting any app.
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uCON64 is a tool to backup all kinds of video games. It supports almost every available backup unit for cartridge-based consoles and performs many other tasks like ROM hacking.
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Bruter is a parallel network login brute-forcer on Win32. This tool is intended to demonstrate the importance of choosing strong passwords. The goal of Bruter is to support a variety of services that allow remote authentication.
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Parcellite is a lightweight GTK+ clipboard manager. This is a stripped down, basic-features-only clipboard manager with a small memory footprint for those who like simplicity.
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Please find the linuxwacom project's new home on Github: https://linuxwacom.github.io/ Previous Description: This project manages the libraries, configuration, and diagnostic tools for Wacom tablets running under Linux. It also maintains updated Linux kernel drivers and Xorg/XFree86 XInput drivers.
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AtomicParsley is a lightweight command line program that can read and set iTunes-style metadata tags in MPEG-4 files & 3gp assets in 3GPP/3GPP2 files.
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LPub3D
LDraw™ editor for LEGO® style digital building instructions.
LPub3D is an Open Source WYSIWYG editing application for creating LEGO® style digital building instructions. LPub3D is developed and maintained by Trevor SANDY. It uses the LDraw™ parts library, the most comprehensive library of digital Open Source LEGO® bricks available (www.ldraw.org/ ) and reads the LDraw LDR and MPD model file formats. LPub3D is available for free under the GNU Public License v3 and runs on Windows, Linux and macOS Operating Systems. LPub3D is also available as a Linux 'no-install', multi-platform AppImage. Portions of LPub3D are based on LPUB© 2007-2009 Kevin Clague, LeoCAD© 2025 Leonardo Zide, LDView© 2025 Travis Cobbs & Peter Bartfai and additional third party components. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. © 2015-2025 Trevor SANDY -
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Siproxd is a proxy/masquerading daemon for the SIP protocol. It allows SIP clients (softphones & hardphones) to work behind an IP masquerading firewall or router.
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A UNIX/Windows/Linux remake of the DOS-game "stunts", providing modern features like openGL graphics, 3D sound and internet multiplaying. Design your own tracks, choose your opponents and try the most spectacular stunts you've ever seen.
