C

Nginx Development Kit - an Nginx module that adds additional generic tools that module developers can use in their own modules

WASI libc implementation for WebAssembly

C library for the MaxMind DB file format

Filesystem monitor tool for Linux/Android iOS/macOS

stderr in red

Adds all vim moves and modes to macOS text fields

switch user and group id and exec

STM32F103 USB HID game device controller with flexible configuration

OpenSSL package for SwiftPM, CocoaPod, and Carthage, multiplatform

Scripts which perform an installable binary image build for SONiC

⚛📦 Hybrid image/package system with atomic upgrades and package layering

High performance library for creating, modiyfing and parsing PDF files in C++

Fast Base64 stream encoder/decoder in C99, with SIMD acceleration

ngrep is like GNU grep applied to the network layer. It's a PCAP-based tool that allows you to specify an extended regular or hexadecimal expression to match against data payloads of packets. It understands many kinds of protocols, including IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw, across a wide variety of interface types, and understands BPF filter logic in the same fashion as more common packet sniffing tools, such as tcpdump and snoop.

Even newer Custom Firmware for Xiaomi Cameras based on Hi3518ev200 Chipset. It includes free RTSP, ONVIF and other improvements based on the work by roleoroleo

Cog - A Free and Open Source Audio Player for macOS 10.15+

Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

A fuse filesystem to access the contents of iOS devices

The TI-Nspire calculator extension for native applications

Tutel MoE: Optimized Mixture-of-Experts Library, Support GptOss/DeepSeek/Kimi-K2/Qwen3 using FP8/NVFP4/MXFP4

BIMP. Batch Image Manipulation Plugin for GIMP.

Netgear Unbrick Utility

Cross-platform instrumentation and introspection library written in C

A steam deck-like controller made from a mix of off the shelf parts and 3d printed parts with custom hardware and firmware

OpenFFBoard is a universal force feedback interface for DIY simulation devices

Infiniband Verbs Performance Tests

:airplane: Multi-functional, compatible DIY general aviation proximity awareness system

GTKWave is a fully featured GTK+ based wave viewer for Unix and Win32 which reads LXT, LXT2, VZT, FST, and GHW files as well as standard Verilog VCD/EVCD files and allows their viewing.

qLibc is a simple and yet powerful C library providing generic data structures and algorithms.

single-file C libraries from Philip Allan Rideout