C++

Wtemweb/wt

A C++ library for building web applications with a widget-based approach and built-in HTTP server.

simdutfsimdutf/simdutf

A high-performance C++ library for Unicode validation and transcoding (UTF-8/16/32, Latin1, Base64) using SIMD instructions.

CRoaringRoaringBitmap/CRoaring

A high-performance C/C++ library for compressed bitmaps with SIMD optimizations, used in databases like ClickHouse and Apache Doris.

libquicdevsisters/libquic

A C++ library implementing the QUIC protocol, extracted from Chromium with minimal dependencies.

Xtracejohnno1962/Xtrace

Trace Objective-C method calls by class or instance for debugging and profiling iOS/macOS applications.

nndeploynndeploy/nndeploy

A visual workflow-based AI deployment framework for multi-platform and multi-backend inference, supporting large models and edge devices.

NumKongashvardanian/NumKong

A portable mixed-precision math library with 2,000+ SIMD kernels for 15+ numeric types across x86, Arm, RISC-V, and WebAssembly.

LINQKitscottksmith95/LINQKit

A set of extensions for LINQ to SQL and Entity Framework that enables expression composition, dynamic predicates, and subquery expression variables.

mpccalexliniger/MPCC

A Model Predictive Contouring Controller (MPCC) for autonomous racing, enabling high-speed path following and obstacle avoidance.

Npgsql.EntityFrameworkCore.PostgreSQLnpgsql/Npgsql.EntityFrameworkCore.PostgreSQL

Entity Framework Core provider for PostgreSQL, enabling .NET developers to interact with PostgreSQL databases using LINQ.

Better Enumsaantron/better-enums

A C++ compile-time enum library providing reflection, iteration, and string conversion in a single header file.

statsitestatsite/statsite

A high-performance C implementation of the StatsD metrics aggregation server, wire-compatible with Etsy's StatsD.

LZFSElzfse/lzfse

A Lempel-Ziv compression algorithm using Finite State Entropy coding for high-speed compression and decompression.

GitHub repositoryethz-asl/libpointmatcher

A modular C++ library implementing the Iterative Closest Point (ICP) algorithm for aligning 2D and 3D point clouds in robotics and computer vision.

elevation_mappingANYbotics/elevation_mapping

A ROS package for robot-centric elevation mapping that handles pose uncertainty for navigation on rough terrain.

DirectXMathmicrosoft/DirectXMath

An all inline SIMD C++ linear algebra library optimized for games and graphics applications.

moderngpumoderngpu/moderngpu

A header-only C++ library for CUDA providing accelerated primitives for solving irregularly parallel problems on GPUs.

LibTomCryptlibtom/libtomcrypt

A comprehensive, modular, and portable cryptographic toolkit providing block ciphers, hash functions, PRNGs, public key cryptography, and more.

LuaBridgevinniefalco/LuaBridge

A lightweight, dependency-free library for binding Lua to C++.

Pixel Vision 8PixelVision8/PixelVision8

An open-source platform for creating authentic 8-bit retro games with modern workflows and programmable limitations.

TensorComprehensionsfacebookresearch/TensorComprehensions

A domain-specific language and C++ library for automatically synthesizing high-performance machine learning kernels.

tcpflowsimsong/tcpflow

A TCP/IP packet demultiplexer that captures and reconstructs TCP connections into separate files for protocol analysis and forensics.

loam_velodynelaboshinl/loam_velodyne

A realtime LiDAR odometry and mapping (LOAM) method for state estimation and mapping using 3D lidar sensors like Velodyne VLP16.

dr_libsmackron/dr_libs

Public domain, single-file audio decoding libraries for C/C++ supporting FLAC, MP3, and WAV.

ReactPhysics3DDanielChappuis/reactphysics3d

An open-source C++ physics engine library for 3D simulations and games with rigid body dynamics and collision detection.

OpenXLSXtroldal/OpenXLSX

A C++ library for reading, writing, creating, and modifying Microsoft Excel .xlsx files.

VkFFTDTolm/VkFFT

A high-performance GPU-accelerated Fast Fourier Transform library supporting Vulkan, CUDA, HIP, OpenCL, Level Zero, and Metal backends.

lidar_camera_calibrationankitdhall/lidar_camera_calibration

A ROS package for extrinsic calibration between LiDAR and camera sensors using 3D-3D point correspondences.

adaada-url/ada

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

RDPycitronneur/rdpy

A pure Python implementation of Microsoft's Remote Desktop Protocol (RDP) and VNC client/server, built on Twisted.

Archgenaray/Arch

A high-performance C# Archetype & Chunks Entity Component System (ECS) for game development and data-oriented programming.

libuclvstakhov/libucl

A C library for parsing and validating configurations in a JSON-compatible language with nginx-like syntax and macros.

Monogame.ExtendedMonoGame-Extended/Monogame-Extended

A collection of libraries and tools that extend MonoGame to simplify 2D game development.

ORXorx/orx

A portable, data-driven 2D game engine focused on ease of use and powerful features.

Twohugoam/two

A C++ toolkit for rapid development of live graphical applications and games with immediate-mode UI and graphics rendering.

C Smart PointersSnaipe/libcsptr

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