Open Source C Software - Page 55
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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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Rspamd
Rapid spam filtering system
Rspamd is an advanced spam filtering system and email processing framework that allows evaluation of messages by a number of rules including regular expressions, statistical analysis and custom services such as URL black lists. Each message is analysed by Rspamd and given a verdict that might be used by MTA for further processing (e.g. to reject a message, or add a special header indicating spam) along with other information, such as possible DKIM signature or modifications suggested for a message. Rspamd can act as a Milter allowing direct interaction with popular MTA systems, such as Postfix or Sendmail. Rspamd is designed to process hundreds of messages per second simultaneously, and provides a number of useful features including a comprehensive Lua API that allows access to messages processing in various aspects as well as asynchronous network API to access external resources, such as DNS, HTTP or even generic TCP/UDP services. -
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StereoKit
An easy-to-use mixed reality library for building VR applications
StereoKit is an easy-to-use open source mixed reality library for building HoloLens and VR applications with C# and OpenXR! Inspired by libraries like XNA and Processing, StereoKit is meant to be fun to use and easy to develop with, yet still quite capable of creating professional and business-ready software. HoloLens 2, Oculus Quest, Windows Mixed Reality, Oculus Desktop, SteamVR, Monado (Linux), and eventually everywhere OpenXR is! Flat screen MR simulator with input emulation for easy development. Builds your application to device in seconds, not minutes. Mixed Reality inputs like hands and eyes are trivial to access. Texture formats .jpg, .png, .tga, .bmp, .psd, .gif, .hdr, .pic, .qoi, equirectangular cubemap, procedural. Documentation generated directly from the source code, including screenshots. -
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Tesseract OCR iOS
Tesseract OCR iOS is a Framework for iOS7+
Use Tesseract OCR in iOS 9.0+ projects written in either Objective-C or Swift. Easy and fast. Tesseract OCR iOS and TesseractOCR.framework are distributed under the MIT license. These are the current versions of the upstream bundled libraries within the framework that this repository provides, Tesseract 3.03-rc1, Leptonica 1.72, Image libraries, Libtiff 4.0.4, Libpng 1.6.18, and Libjpeg 9a. -
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The Acton programming language
The Acton Programming Language
Write programs that seamlessly run as a distributed system over an entire data center or region. All without a single line of RPC code. Acton automatically persists the state of your application (orthogonal persistence) to a built-in distributed backend. No need to use a database or message broker ever again. 0 lines of persistence code. Built-in redundancy; Acton's transactional, high-performance distributed RTS can seamlessly resume application state after hardware failures. Never stop for an upgrade; Live upgrade your running application through compiler-supported code and data migration. Acton programs, and the actor model, work well from simple script-style applications on a single machine up to large distributed systems across a Data Center. Run at your scale. -
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Toxic
A Tox-based instant messaging and video chat client
Toxic is a Tox protocol-based command-line messenger for Linux, offering fully encrypted, decentralized, and serverless instant messaging. It includes features such as text messaging, file transfer, and audio calls—all without requiring user accounts or central servers. Toxic is designed for power users who prefer a minimalist interface, operating entirely within a terminal while delivering strong privacy through the Tox peer-to-peer protocol. It’s lightweight, fast, and ideal for use in low-resource or remote systems. -
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Wi-Fi Ducky
Upload, save and run keystroke injection payloads with an ESP8266
Upload, save and run keystroke injections remotely with an ESP8266 + ATmega32u4. Using a USB device that act as a keyboard to inject keystrokes is well known these days. The USB Rubber Ducky by Hak5 is THE hacker gadget for this kind of attack. It introduced a simple script language called Ducky Script, which this project uses too. The ESP8266 is a popular Wi-Fi chip used in a lot of projects. Because it's cheap, small, and has its own file system (SPIFFS), it's perfect for enabling an easy remote connection and holding Ducky Script payloads. Although the ESP8266 is awesome, it doesn't have a native USB, which means it can't act as a keyboard. The ESP will open up a Wi-Fi access point and host a web interface from which you can upload and manage your scripts. When you hit run, it will send the script to the ATmega, which then will execute it on the target machine. -
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chibicc
A small C compiler
chibicc is a small yet highly capable C compiler designed to implement most features of the C11 standard while maintaining a clean and educational codebase. It is intended as both a functional compiler and a learning resource, allowing developers to understand how compilers work by reading and studying its implementation. Despite being categorized as a “toy” compiler, it is powerful enough to compile real-world programs such as Git, SQLite, and libpng without modification. The project is structured incrementally, with each commit representing a step in building a full compiler, making it particularly valuable for educational purposes. It includes support for advanced C features such as floating-point types, variable-length arrays, thread-local storage, and atomic operations. Chibicc also provides clear error messages, helping developers understand compilation issues more effectively. -
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cmus - C* Music Player
Small, fast & powerful console music player for Unix-like systems
cmus, also known as the C* Music Player is a small yet fast and powerful console music player for Unix-like operating systems. It comes with a number of great features, such as gapless playback, ReplayGain support, MP3 and Ogg streaming, easy-to-use directory browser, powerful playlist filters / live filtering and more. cmus also supports several input and output plugins. Input plugins include: Ogg Vorbis, MP3, FLAC, Opus, Musepack, WavPack, WAV, AAC, MP4, audio CD and more. Output plugins include: PulseAudio, ALSA, OSS, JACK, RoarAudio, CoreAudio, libao, among others. -
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dynamic window manager
dwm is an extremely fast, small, and dynamic window manager for X
dwm is an extremely fast, small, and dynamic window manager for X. In order to build dwm you need the Xlib header files. Edit config.mk to match your local setup (dwm is installed into the /usr/local namespace by default). If you are going to use the default bluegray color scheme it is highly recommended to also install the bluegray files shipped in the dextra package. -
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fairseq2
FAIR Sequence Modeling Toolkit 2
fairseq2 is a modern, modular sequence modeling framework developed by Meta AI Research as a complete redesign of the original fairseq library. Built from the ground up for scalability, composability, and research flexibility, fairseq2 supports a broad range of language, speech, and multimodal content generation tasks, including instruction fine-tuning, reinforcement learning from human feedback (RLHF), and large-scale multilingual modeling. Unlike the original fairseq—which evolved into a large, monolithic codebase—fairseq2 introduces a clean, plugin-oriented architecture designed for long-term maintainability and rapid experimentation. It supports multi-GPU and multi-node distributed training using DDP, FSDP, and tensor parallelism, capable of scaling up to 70B+ parameter models. The framework integrates seamlessly with PyTorch 2.x features such as torch.compile, Fully Sharded Data Parallel (FSDP), and modern configuration management. -
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fwupd
A system daemon to allow session software to update firmware
This project aims to make updating firmware on Linux automatic, safe, and reliable. A system daemon to allow session software to update firmware. -
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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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kallisto
Near-optimal RNA-Seq quantification
kallisto is a program for near-optimal quantification of transcript abundances from RNA-Seq data, or more generally of target sequences using high-throughput sequencing reads. It is based on the idea of using pseudoalignment to quickly determine reads and targets’ compatibility, with no need for alignment. According to benchmarks done on a Mac desktop computer, kallisto can quantify 30 million human bulk RNA-seq reads in less than 3 minutes with just the read sequences and a transcriptome index, that in itself can take more than 10 minutes to build. And since it uses pseudoalignment, it is robust to errors in the reads and preserves the key information needed for quantification. This makes kallisto not only fast but highly accurate as well. In many benchmarks, it even greatly outperforms existing tools. -
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libplacebo
Official mirror of libplacebo
libplacebo is a flexible, high-performance graphics library built on top of Vulkan, designed to provide reusable GPU-accelerated components for media applications. It originated as a core part of the rendering pipeline for the mpv media player and has since grown into a standalone library used for tone mapping, dithering, color space conversion, and more. libplacebo is ideal for developers looking to integrate sophisticated video rendering and post-processing into their own applications with full control over shaders and rendering stages. -
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picom
A lightweight compositor for X11
picom is a compositor for X and a fork of Compton. A lightweight compositor for X11. -
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wavemon
Ncurses-based monitoring application for wireless network devices
wavemon is a wireless device monitoring application that allows you to watch signal and noise levels, packet statistics, device configuration and network parameters of your wireless network hardware. It should work (though with varying features) with all devices supported by the Linux kernel. Apart from debian/ubuntu packages and slackbuild scripts for wavemon, this repository contains the full source code. -
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Portable C program to convert a .TiVo file from TiVoToGo to a normal MPEG file given the MAK for the TiVo which generated the file.
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Network Audio System
Network transparent, client/server audio transport system
The Network Audio System is a network transparent, client/server audio transport system. It can be described as the audio equivalent of an X server. This project is currently in maintenance mode. Patches are accepted, releases will be sporadic. -
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PokeMini
Portable Pokémon Mini Emulator
Portable emulator for Pokémon-Mini. Last version: 0.60 (16 June 2015) Check Wiki for platform dependencies and other information. -
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Core13
Arduino core for Attiny13
An Arduino core for the Attiny13 processors designed with small size in mind. *Support*: http://arduino.cc/forum/index.php/topic,89781.0.html Currently supported functions: * = Partial support map() random() randomSeed() millis() micros() delay() delayMicroseconds() * analogRead() analogWrite() pinMode() digitalRead() digitalWrite() pulseIn() (Untested) shiftIn() (Untested) shiftOut() (Untested) If you find any issues be sure to make sure you are using the latest version first. -
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Zebedee is a simple program to establish an encrypted, compressed "tunnel" for TCP/IP or UDP data transfer between two systems.
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mp3guessenc
What's inside your mp3 files REALLY ?
mp3guessenc is based upon the original project by Naoki Shibata. This command line utility was born to detect the encoder used for a mpeg layer III file but now it can do more and scan any mpeg audio file (any layer) and print a LOT of useful information. Latest modifications include fixes, new features and code optimizations. -
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The Xbox Linux Project aims to privide a version of GNU/Linux for the Xbox, so that it can be used as an ordinary computer. Linux should make use of all Xbox hardware and allow to install and run software from standard i386 Linux distributions.
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Sodipodi is general vector illustrating application for Linux/Unix and Windows. It uses W3C SVG as native file and in-memory image format and can do many neat things.
