CMake

adaada-url/ada

A fast, spec-compliant URL parser written in modern C++, used by Node.js, Cloudflare Workers, and other major systems.

log4cpluslog4cplus/log4cplus

A C++23 logging API modeled after log4j, providing thread-safe, flexible, and granular control over log management.

C Smart PointersSnaipe/libcsptr

A C library providing smart pointer constructs like unique_ptr and shared_ptr with automatic memory management.

PikaPythonpikastech/pikapython

An ultra-lightweight Python interpreter for microcontrollers, requiring only 4KB of RAM and zero dependencies.

flexible-collision-libraryflexible-collision-library/fcl

A C++ library for collision detection, distance computation, and proximity queries between 3D geometric models.

libsndfileerikd/libsndfile

A C library for reading and writing sound files containing sampled audio data.

perf-map-agentjrudolph/perf-map-agent

A Java agent that generates method mapping files for JIT-compiled code to enable profiling with Linux perf tools.

OpenLocoOpenLoco/OpenLoco

An open-source re-implementation of Chris Sawyer's Locomotion, a transport company simulation game.

CppServerchronoxor/CppServer

Ultra fast and low latency asynchronous socket server & client C++ library with support for TCP, SSL, UDP, HTTP, HTTPS, and WebSocket protocols.

V-HACDkmammou/v-hacd

A C++ library for decomposing 3D meshes into approximate convex parts for efficient collision detection in games and simulations.

Easy3DLiangliangNan/Easy3D

A lightweight C++/Python library for 3D data processing, geometry algorithms, and rendering with an easy-to-use API.

ThunderSVMXtra-Computing/thundersvm

A fast Support Vector Machine (SVM) library that leverages GPUs and multi-core CPUs for high-performance machine learning.

RGBDSgbdev/rgbds

A free assembler/linker toolchain for developing games and software for the Nintendo Game Boy and Game Boy Color.

TimewarriorGothenburgBitFactory/timewarrior

A command-line time tracking utility with stopwatch features, calendar-based backfill, and flexible reporting.

memoryfoonathan/memory

STL-compatible C++ memory allocator library with a simpler RawAllocator concept and various allocator implementations.

Oculantewoelper/oculante

A fast, portable, and privacy-respecting image viewer with basic editing tools and wide format support.

SOCISOCI/soci

A C++ database access library providing a simple, unified interface for multiple database backends.

Horde3Dhorde3d/Horde3D

A lightweight, cross-platform 3D rendering and animation engine with a clean C++ architecture and C-style API.

AnKi 3D Enginegodlikepanos/anki-3d-engine

An open-source 3D game engine supporting Vulkan and DirectX 12 across Linux, Windows, and Android platforms.

VcVcDevel/Vc

A portable C++ library providing SIMD vector types for explicit data-parallel programming with zero-overhead abstractions.

OpenGothicTry/OpenGothic

An open-source re-implementation of Gothic 2: Night of the Raven, designed to run the classic game on modern systems with enhanced graphics.

Light Mapperands/lightmapper

A C/C++ single-file library for drop-in lightmap baking using your existing OpenGL renderer.

openblackopenblack/openblack

An open-source reimplementation of Black & White (2001) in modern C++ with support for OpenGL and Vulkan.

Speech Notemkiol/dsnote

A Linux desktop app for offline note-taking, reading, and translation using speech-to-text, text-to-speech, and machine translation.

Polygon Mesh Processing Librarypmp-library/pmp-library

A modern C++ library for processing and visualizing polygon surface meshes with efficient data structures and standard algorithms.

CppUTestcpputest/cpputest

A unit testing and mocking framework for C and C++ with memory leak detection.

minizip-ngzlib-ng/minizip-ng

A modern, cross-platform C library for creating, reading, and modifying ZIP archives with extensive compression and encryption support.

Minizipnmoinvaz/minizip

A modern, cross-platform C library for creating, reading, and modifying ZIP archives with extensive compression and encryption support.

junctionpreshing/junction

A C++ library providing multiple concurrent hash map implementations for high-performance multithreaded applications.

corrosioncorrosion-rs/corrosion

A CMake tool for seamlessly integrating Rust crates (executables and libraries) into existing C/C++ projects.

PixelAnnotationToolabreheret/PixelAnnotationTool

A desktop application for semi-automatic image annotation using OpenCV's watershed algorithm with manual brush refinement.

igraphigraph/python-igraph

A Python interface for the igraph library, enabling fast creation, manipulation, and analysis of large graphs and networks.

OpenTombopentomb/OpenTomb

An open-source re-implementation of the classic Tomb Raider engine for playing Tomb Raider 1-5 and custom levels.

Cpptracejeremy-rifkin/cpptrace

A simple, portable, and self-contained C++ stacktrace library supporting C++11 and newer on Linux, macOS, and Windows.

voglValveSoftware/vogl

An OpenGL capture and playback debugger for analyzing and debugging OpenGL applications.

MatXNVIDIA/MatX

A modern C++20 GPU numerical computing library with Python-like syntax for near-native performance on NVIDIA GPUs.