C++

EssentiaMTG/essentia

Open-source C++ library for audio analysis, music information retrieval, and synthesis with Python bindings.

OpenSceneGraphopenscenegraph/OpenSceneGraph

A high-performance 3D graphics toolkit for real-time visualization, simulation, and virtual reality applications.

Blazor workshopdotnet-presentations/blazor-workshop

A hands-on workshop for learning Blazor by building a pizza ordering application with .NET 8.

ThriveRevolutionary-Games/Thrive

An open-source evolution simulation game where players guide a species from microscopic origins to space exploration.

pgmodelerpgmodeler/pgmodeler

An open-source, multiplatform visual database modeling tool designed specifically for PostgreSQL.

NEOneo-project/neo

A C# implementation of the Neo blockchain protocol for building a modern distributed network for the Smart Economy.

Blazorisestsrki/Blazorise

A source-available Blazor UI component library with a consistent API across Bootstrap, Tailwind, Bulma, Material, AntDesign, and Fluent UI.

BlazoriseMegabit/Blazorise

A source-available Blazor UI component library with a consistent API across Bootstrap, Tailwind, Bulma, Material, AntDesign, and Fluent UI.

glslangKhronosGroup/glslang

A reference compiler front end for GLSL and ESSL, partial HLSL support, and a SPIR-V generator.

libarchivelibarchive/libarchive

A portable C library for reading and writing streaming archives in multiple formats, with command-line tools.

ICUunicode-org/icu

A mature, widely-used set of C/C++ and Java libraries providing Unicode and globalization support for software applications.

OpenTKopentk/opentk

A fast, low-level C# binding for OpenGL, OpenAL, and OpenCL with cross-platform windowing, input, and math libraries.

libjxllibjxl/libjxl

Reference implementation of the JPEG XL image format, providing a standardized library for encoding and decoding next-generation images.

OpenXRayOpenXRay/xray-16

An improved, open-source version of the X-Ray Engine used in the S.T.A.L.K.E.R. game series, featuring bug fixes, performance boosts, and cross-platform support.

FluentMigratorfluentmigrator/fluentmigrator

A .NET migration framework that manages database schema changes using C# classes instead of SQL scripts.

Boehm GCivmai/bdwgc

A conservative garbage collector for C and C++ providing automatic memory management without requiring language changes.

StringZillaashvardanian/StringZilla

A high-performance string library leveraging SIMD and SWAR to accelerate search, hashing, sorting, and edit distances across C, C++, Python, Rust, and more.

IRremoteESP8266markszabo/IRremoteESP8266

Infrared remote library for ESP8266/ESP32: send and receive infrared signals with multiple protocols.

RDKitrdkit/rdkit

A collection of cheminformatics and machine-learning software for molecular informatics, written in C++ with Python wrappers.

PyTorch-BigGraphfacebookresearch/PyTorch-BigGraph

A distributed system for learning graph embeddings from large-scale graphs with billions of entities and trillions of edges.

Simple Binary Encodingreal-logic/simple-binary-encoding

A high-performance binary message codec for low-latency financial applications, with multi-language support.

Atomic EngineAtomicGameEngine/AtomicGameEngine

A multi-platform 2D and 3D game engine with consistent APIs in C++, C#, JavaScript, and TypeScript.

VerifyVerifyTests/Verify

A snapshot testing tool for .NET that simplifies assertions of complex data models and documents.

pinocchiostack-of-tasks/pinocchio

A fast and flexible C++ library implementing state-of-the-art Rigid Body Dynamics algorithms and their analytical derivatives.

G2O: General framework for graph optomizationRainerKuemmerle/g2o

An open-source C++ framework for optimizing graph-based nonlinear error functions, widely used in robotics and computer vision.

DyNetclab/dynet

A neural network library optimized for dynamic structures that change per training instance, with C++ and Python bindings.

RoslynatorJosefPihrt/Roslynator

A comprehensive set of code analysis tools, refactorings, and client libraries for C# development, built on the Roslyn compiler platform.

RakNetOculusVR/RakNet

A cross-platform C++ networking engine designed for game development with features like NAT traversal and voice chat.

C++ Actor Frameworkactor-framework/actor-framework

An open-source C++ framework implementing the Actor Model for building scalable, high-performance concurrent and distributed applications.

Let Me Contain That For Yougoogle/lmctfy

Google's open-source Linux application container stack providing resource isolation through a high-level API.

Civetwebcivetweb/civetweb

An easy-to-use, embeddable C/C++ web server with optional CGI, SSL, and Lua support.

indicatorsp-ranav/indicators

A header-only C++ library for creating customizable, thread-safe progress bars and spinners in terminal applications.

Shouldlyshouldly/shouldly

A .NET assertion framework that provides clear, human-readable error messages for unit tests.

CppSharpmono/CppSharp

Tools and libraries to generate .NET bindings for native C/C++ APIs, enabling interoperability with C# and C++/CLI.

Vulkan Memory AllocatorGPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator

A single-header C++ library that simplifies GPU memory allocation and resource creation for Vulkan applications.

FluentFTProbinrodricks/FluentFTP

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