C++

Dripninjudd/drip

A fast JVM launcher that reduces startup times by keeping pre-initialized JVMs in reserve, then discarding them after use.

Chloeshuxinqin/Chloe

A lightweight, high-performance .NET ORM library with LINQ-style querying for multiple databases.

Light Mapperands/lightmapper

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

You Don't Know Node.jsazat-co/you-dont-know-node

An online course and presentation covering core Node.js concepts like event emitters, streams, buffers, clusters, and C++ addons.

VcVcDevel/Vc

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

ParadoxSiliconStudio/xenko

Xenko is a cross-platform game engine with a focus on VR/AR development, now known as Stride.

ngsngs-lang/ngs

A modern programming language designed specifically for DevOps tasks, offering structured data handling and cloud integration.

upbprotocolbuffers/upb

A small, fast C implementation of Protocol Buffers for embedded systems and high-performance applications.

ServiceStack.OrmLiteServiceStack/ServiceStack.OrmLite

A fast, simple, and typed ORM for .NET with a code-first approach and minimal configuration.

Quake3eec-/Quake3e

A modern, optimized Quake III Arena engine with Vulkan and OpenGL renderers, focused on performance, security, and mod compatibility.

EnvPoolsail-sg/envpool

A C++-based high-performance parallel environment execution engine for vectorized reinforcement learning simulations.

OpenDDSobjectcomputing/OpenDDS

Open-source C++ implementation of the OMG Data Distribution Service (DDS) for building real-time, distributed publish-subscribe systems.

csoundcsound/csound

A sound and music computing system for audio synthesis, processing, and composition.

rotors_simulatorethz-asl/rotors_simulator

A modular Gazebo simulator for multirotor aerial vehicles (MAVs) with ROS integration.

robin-mapTessil/robin-map

A C++ header-only library providing fast hash map and hash set implementations using robin hood hashing with open addressing.

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.

ExcelDnaExcel-DNA/ExcelDna

A free library for creating Excel add-ins and user-defined functions using .NET languages like C# and VB.NET.

FiniteStateEntropyCyan4973/FiniteStateEntropy

A high-speed entropy coding library featuring Huff0 (modern Huffman) and FSE (ANS-based) codecs for fast compression and decompression.

PHPSpyadsr/phpspy

A low-overhead sampling profiler for PHP 7+ that works with CLI, Apache, and FPM without requiring code changes.

FetlangProperty404/fetlang

A statically typed, procedural esoteric programming language where source code resembles fetish erotica.

Microsoft Automatic Graph LayoutMicrosoft/automatic-graph-layout

A .NET library and toolset for automatic graph layout, visualization, and interactive viewing of graphs.

VoganSteveDunn/Vogen

A .NET source generator and analyzer that creates validated value objects from primitives to combat primitive obsession.

Xamarin.Essentialsxamarin/Essentials

A cross-platform API library providing essential native device features for Xamarin mobile applications.

uSocketsuNetworking/uSockets

A minimal, cross-platform networking library providing optimized TCP, TLS, QUIC, and HTTP3 transports for async applications.

Minizipnmoinvaz/minizip

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

minizip-ngzlib-ng/minizip-ng

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

Scientistgithub/Scientist.net

A .NET library for safely refactoring critical code paths by comparing old and new implementations in production.

yajl-rubybrianmario/yajl-ruby

A high-performance streaming JSON parsing and encoding library for Ruby with C bindings to YAJL.

libfmsrendle/libfm

A software implementation of factorization machines for estimating interactions between categorical variables in large datasets.

libpg_querypganalyze/libpg_query

C library that provides PostgreSQL's SQL parser and scanner as a standalone component for external tools.

nixdnix-community/nixd

A feature-rich language server for the Nix language, built on the official Nix C++ libraries.

ShellProgressBarMpdreamz/shellprogressbar

A .NET library for displaying customizable progress bars and child progress bars in console applications.

Cpptracejeremy-rifkin/cpptrace

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

unordered_densemartinus/unordered_dense

A fast, densely stored C++17+ hashmap and hashset using robin-hood backward shift deletion, offering near-drop-in replacements for std::unordered_map/set.

Sepnietras/Sep

A modern, minimal, and high-performance .NET library for reading and writing CSV/TSV files with zero allocations and SIMD-accelerated parsing.

parsonkgabis/parson

A lightweight, C89-compatible JSON library with a simple API and dot-notation addressing.