C++

FluentFTProbinrodricks/FluentFTP

A fully managed, high-performance FTP and FTPS client library for .NET and .NET Standard, optimized for speed.

querybuildersqlkata/querybuilder

A powerful, expressive SQL query builder for C# that supports multiple databases with a unified API.

Torque 3DGarageGames/Torque3D

MIT-licensed open-source 3D game engine originally developed by GarageGames.

collectdcollectd/collectd

A system statistics collection daemon that gathers metrics from various sources and provides mechanisms to store and monitor them.

Honggfuzzgoogle/honggfuzz

A security-oriented, feedback-driven, evolutionary software fuzzer that uses hardware and software code coverage to find bugs.

byebugdeivid-rodriguez/byebug

A simple to use, feature-rich debugger for Ruby built as a C extension using the TracePoint and Debug Inspector APIs.

pyslamluigifreda/pyslam

A hybrid Python/C++ Visual SLAM pipeline supporting monocular, stereo, and RGB-D cameras with modern features, loop closure, and dense reconstruction.

MessagePackmsgpack/msgpack-c

A C/C++ implementation of the MessagePack binary serialization format for efficient data exchange.

openfortivpnadrienverge/openfortivpn

An open-source client for establishing PPP+TLS VPN tunnels, specifically compatible with Fortinet VPN gateways.

audioFluxlibAudioFlux/audioFlux

A deep learning library for audio and music analysis, providing time-frequency transforms and feature extraction for tasks like classification and MIR.

RemoteryCeltoys/Remotery

A realtime CPU/GPU profiler hosted in a single C file with a remote web viewer for performance analysis.

LINQ to DBlinq2db/linq2db

A fast, type-safe LINQ database access library that sits between micro-ORMs and full ORMs, offering SQL-like control with LINQ expressions.

xeus-clingQuantStack/xeus-cling

A Jupyter kernel for C++ that enables interactive computing with cling interpreter and xeus protocol.

slmtoyoda/sl

A Steam Locomotive animation that runs across your terminal when you accidentally type 'sl' instead of 'ls'.

json-cjson-c/json-c

A JSON implementation in C with reference counting object model for constructing, parsing, and serializing JSON objects.

json-cjson-c/json-c

A JSON implementation in C with reference counting object model for constructing, parsing, and serializing JSON objects.

jankjeaye/jank

A native Clojure dialect hosted on LLVM with seamless C++ interoperability.

mongo-csharp-drivermongodb/mongo-csharp-driver

The official MongoDB .NET/C# driver for connecting C# applications to MongoDB databases.

dbg-macrosharkdp/dbg-macro

A single-header C++ macro for printf-style debugging with colorized output, type info, and expression passthrough.

react-native-iapdooboolab/react-native-iap

A high-performance, OpenIAP-compliant in-app purchase library for React Native with cross-platform support.

ojohler55/oj

A high-performance JSON parser and object marshaller for Ruby, optimized for speed and compatibility.

Intermediate Graphics Library (IGL)facebook/igl

A cross-platform C++ graphics library providing a low-level GPU abstraction over Metal, Vulkan, OpenGL, and WebGL.

Gear-Libgozfree/gear-lib

A portable C library collection for IoT, embedded, and network service development with multimedia support.

opendbccommaai/opendbc

A Python API and CAN database for controlling and reading data from modern cars with ADAS interfaces.

BlazingMQ (.1k)bloomberg/blazingmq

A modern, high-performance open source distributed message queuing system with durability, fault tolerance, and rich routing strategies.

MyDumpermydumper/mydumper

A high-performance, multithreaded MySQL logical backup and restoration tool with consistent snapshot support.

libmillsustrik/libmill

A C library that brings Go-style coroutines and channels to C programming for lightweight concurrency.

NetMQzeromq/netmq

A 100% native C# implementation of the ZeroMQ messaging library for .NET applications.

CosmosOSCosmosOS/Cosmos

An operating system construction kit for building bare-metal OSes using managed .NET languages like C# and VB.NET.

TensorFlowSharpmigueldeicaza/TensorFlowSharp

A .NET binding to the TensorFlow C API for running existing machine learning models in C# and F#.

IKOSnasa-sw-vnv/ikos

A static analyzer for C/C++ that detects runtime errors using abstract interpretation theory.

IKOSNASA-SW-VnV/ikos

A static analyzer for C/C++ that detects runtime errors using abstract interpretation theory.

grid_mapANYbotics/grid_map

A C++ library with ROS interface for managing multi-layered 2D grid maps in mobile robotics.

libpcapthe-tcpdump-group/libpcap

A portable system-independent C library for user-level network packet capture across multiple platforms.

irssiirssi/irssi

A modular, terminal-based IRC client with support for multiple chat protocols via third-party modules.

NetCoreServerchronoxor/NetCoreServer

Ultra-fast, low-latency asynchronous socket server and client library for .NET Core supporting TCP, SSL, UDP, HTTP, HTTPS, and WebSocket protocols.