c++20

Follyfacebook/folly

A C++20 library from Facebook focused on performance and practicality, complementing std and Boost with components used at scale.

openageSFTtech/openage

A free engine clone of the Genie Engine used by Age of Empires, Age of Empires II, and Star Wars: Galactic Battlegrounds.

Drogonan-tao/drogon

A high-performance C++17/20 HTTP web framework for building asynchronous, cross-platform server applications.

Taskflowtaskflow/taskflow

A fast, expressive, and header-only C++ library for building task-parallel programs with static, dynamic, and conditional task graphs.

Box2Derincatto/box2d

A high-performance 2D physics engine for games with continuous collision detection, multithreading, and SIMD optimization.

ClipboardSlackadays/Clipboard

A fast, feature-packed, and user-friendly clipboard manager for the terminal with infinite clipboards and history.

Cindercinder/Cinder

A peer-reviewed, free, open source C++ library for professional-quality creative coding.

NumCppdpilger26/NumCpp

A templatized header-only C++ implementation of the Python NumPy library for numerical computing.

CTREhanickadot/compile-time-regular-expressions

A C++ library for compile-time regular expression matching, searching, and capturing with PCRE-like syntax.

elementscycfi/elements

A lightweight, modular, and embeddable C++20 GUI library with a declarative DSEL interface for building resolution-independent interfaces.

BS::thread_poolbshoshany/thread-pool

A fast, lightweight, modern, and easy-to-use C++17/20/23 thread pool library for high-performance parallel computing.

concurrencppDavid-Haim/concurrencpp

A modern C++ concurrency library providing tasks, executors, timers, and C++20 coroutines for writing highly concurrent applications.

Kokkoskokkos/kokkos

A C++ programming model for writing performance-portable applications targeting all major HPC platforms.

TinyGLTFsyoyo/tinygltf

A header-only C++11 library for loading and saving glTF 2.0 assets, featuring a new C-centric v3 API for low-overhead performance.

Overloadadriengivry/Overload

A free, open-source 3D game engine built in C++20 with Lua scripting and a full-featured editor.

Open-source DriverGPUOpen-Drivers/AMDVLK

An open-source Vulkan driver for AMD Radeon graphics adapters on Linux, built on AMD's Platform Abstraction Library (PAL).

reflect-cppgetml/reflect-cpp

A C++20 library for fast serialization, deserialization, and validation using reflection, supporting JSON, Avro, CSV, Parquet, and more.

btop4winaristocratos/btop4win

A resource monitor for Windows that displays system usage and stats in a user-friendly interface.

robin-hood-hashingmartinus/robin-hood-hashing

A fast and memory-efficient C++ hashmap implementation using robin hood hashing as a drop-in replacement for std::unordered_map/set.

μtboost-experimental/ut

A C++20 single-header, macro-free μ(micro)/unit testing framework focused on fast compilation and modern C++ features.

MatXNVIDIA/MatX

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

LibSourceysourcey/libsourcey

A modular C++20 toolkit for real-time media, WebRTC, and networking, built as a lightweight alternative to libwebrtc.

iceynilstate/icey

A modular C++20 toolkit for real-time media, WebRTC, and networking, combining FFmpeg, libuv, and libdatachannel into a single runtime.

iguanaqicosmos/iguana

A universal serialization engine for C++ using compile-time reflection to convert objects to/from JSON, XML, YAML, and Protobuf.

scnlibeliaskosunen/scnlib

A modern C++ library for type-safe and fast text parsing, replacing scanf and iostream.

toml11ToruNiina/toml11

A feature-rich, header-only C++11/14/17/20 library for parsing and serializing TOML configuration files with full spec compliance.

Ruckigpantor/ruckig

Real-time, jerk-constrained, time-optimal trajectory generation for robots and machines.

Siv3DSiv3D/OpenSiv3D

A C++20 framework for creative coding, enabling 2D/3D games, media art, visualizers, and simulators across Windows, macOS, Linux, and the Web.

xtdgammasoft71/xtd

A modern C++20 framework for building cross-platform console, GUI (WinForms-like), and unit test applications.

zpp_bitseyalz800/zpp_bits

A lightweight C++20 header-only library for binary serialization and remote procedure calls with zero-overhead design.

libforkConorWilliams/libfork

A lock-free, wait-free, continuation-stealing tasking library for C++20 built on coroutines, enabling ultra-fine-grained parallelism.

LibMEIrism-digital/verovio

A fast, portable library for engraving MEI, MusicXML, and Humdrum music scores into SVG images.

Veroviorism-ch/verovio

A fast, portable library for engraving MEI, MusicXML, and Humdrum music scores into SVG images.

TermOxa-n-t-h-o-n-y/TermOx

A C++20 library for building rich, interactive terminal user interfaces with minimal code.

oofs9w/oof

A single-header C++20 library for convenient, high-performance RGB color and cursor position control in console applications.

fast_iocppfastio/fast_io

A freestanding C++20 input/output library designed to replace <iostream> and <cstdio> with exceptional performance.