Ranked awesome lists, all in one place

This list is a copy of fffaraz/awesome-cpp with ranks

Awesome C++

A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny things. Inspired by awesome-… stuff.

Awesome C++
Software
Resources
- API Design
- Articles
- Books
- Coding Style
- Videos
- Websites
Other Awesome Lists
Contributing

Standard Libraries

C++ Standard Library - including STL Containers, STL Aglorithm, STL Functional, etc.

C++ Standard Library - A collection of classes and functions, which are written in the core language and part of the C++ ISO Standard itself.
Standard Template Library - The Standard Template Library (STL).
C POSIX library - A specification of a C standard library for POSIX systems.
ISO C++ Standards Committee - ISO/IEC JTC1/SC22/WG21 - The C++ Standards Committee. website
The GNU C Library - The purpose of this manual is to tell you how to use the facilities of the GNU C Library.

Frameworks

C++ generic frameworks and libraries.

abseil-cpp ★4150 - Abseil C++ Common Libraries. [Apache2]
Apache C++ Standard Library - STDCXX, A collection of algorithms, containers, iterators, and other fundamental components. [retired] [Apache2]
APR - Apache Portable Runtime. Another library of cross-platform utility functions. [Apache2]
ASL - Adobe Source Libraries provides peer-reviewed and portable C++ source libraries. [MIT]
Boost - A large collection of generic C++ libraries. [Boost] website
BDE ★886 - The BDE Development Environment from Bloomberg Labs. [Apache2]
Cinder - A community-developed, free and open source library for professional-quality creative coding. [BSD]
Cxxomfort - A small, header-only library that backports to C++03 some of the nifty C++11 goodies. [MIT]
Dlib ★5064 - A general purpose cross-platform C++ library designed using contract programming and modern C++ techniques. [Boost] website
EASTL ★3220 - Electronic Arts Standard Template Library. [BSD]
ffead-cpp ★248 - Framework for Enterprise Application Development. [Apache2]
Folly ★10791 - An open-source C++ library developed and used at Facebook. [Apache2]
FunctionalPlus ★712 - Functional Programming Library for C++. Write concise and readable C++ code. [MIT]
GLib - GLib provides the core application building blocks for libraries and applications written in C. [LGPL]
JUCE - An all-encompassing C++ class library for developing cross-platform software. [Core-Module: ISC, Rest: GPL2/GPL3/Commercial] website
libPhenom ★1575 - libPhenom is an eventing framework for building high performance and high scalability systems in C. [Apache2]
LibSourcey ★711 - C++11 evented IO for real-time video streaming and high performance networking applications. [LGPL]
LibU ★206 ⏳6Y - A multiplatform utility library written in C. [BSD]
Loki - A C++ library of designs, containing flexible implementations of common design patterns and idioms. [MIT]
MiLi - Minimal headers-only C++ Library. [Boost]
OpenFrameworks ★6179 - A cross platform open source toolkit for creative coding in C++. [MIT] website
Qt - A cross-platform application and UI framework. [GPL/LGPL/Commercial]
Reason - A cross platform framework designed to bring the ease of use of Java, .Net, or Python to developers who require the performance and strength of C++. [GPL2]
ROOT - A set of OO frameworks with all the functionality needed to handle and analyze large amounts of data in a very efficient way. Used at CERN. [LGPL]
STLport - An exemplary version of STL. [Free]
STXXL - Standard Template Library for Extra Large Data Sets. [Boost]
tbox ★1661 - A glib-like multi-platform c library. [Apache2] website
Ultimate++ - A C++ cross-platform rapid application development framework. [BSD]
uSTL - The small STL library. [MIT]
Windows Template Library - A C++ library for developing Windows applications and UI components. [Public]
Yomm2 - Fast, Orthogonal, Open multi-methods. Supersedes Yomm11 ★112 [Boost]

Artificial Intelligence

ANNetGPGPU ★53 - A GPU (CUDA) based Artificial Neural Network library. [LGPL]
btsk ★250 ⏳2Y - Game Behavior Tree Starter Kit. [zlib]
Evolving Objects - A template-based, ANSI-C++ evolutionary computation library which helps you to write your own stochastic optimization algorithms insanely fast. [LGPL]
frugally-deep ★214 - Header-only library for using Keras models in C++. [MIT]
Recast/Detour ★1972 - (3D) Navigation mesh generator and pathfinder, mostly for games. [zlib]
TensorFlow ★103699 - An open source software library for numerical computation using data flow graphs [Apache]
CNTK ★14591 - Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit. [Boost]
tiny-dnn ★4158 - A header only, dependency-free deep learning framework in C++11. [BSD]
Veles ★858 ⏳1Y - Distributed platform for rapid Deep learning application development. [Apache]
Kaldi ★3866 - Toolkit for speech recognition. [Apache]

Asynchronous Event Loop

Asio ★1374 - A cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach. [Boost] website
Boost.Asio - A cross-platform C++ library for network and low-level I/O programming. [Boost]
C++ Actor Framework ★1519 - An Open Source Implementation of the Actor Model in C++. [BSD-3-Clause] website
libev - A full-featured and high-performance event loop that is loosely modelled after libevent, but without its limitations and bugs. [BSD and GPL]
libevent - An event notification library. [BSD]
libuv ★9503 - Cross-platform asychronous I/O. [BSD]
uvw ★321 - C++ wrapper for libuv. [MIT]

Audio

Audio, Sound, Music, Digitized Voice Libraries

FMOD - An easy to use crossplatform audio engine and audio content creation tool for games. [Free for non-commercial/Commercial]
KFR - Fast, modern C++ DSP framework, FFT, FIR/IIR filters, Sample Rate Conversion. [GPL/Commercial]
Maximilian ★681 - C++ Audio and Music DSP Library. [MIT]
OpenAL - Open Audio Library - A crossplatform audio API. [BSD/LGPL/Commercial]
Opus - A totally open, royalty-free, highly versatile audio codec. [BSD]
SELA ★176 - SimplE Lossless Audio. [MIT]
SoLoud ★408 - Easy, portable audio engine for games. [zlib]
Speex - A free codec for free speech. Obsoleted by Opus. [BSD]
Tonic ★341 ⏳2Y - Easy and efficient audio synthesis in C++. [Unlicense]
Vorbis - Ogg Vorbis is a fully open, non-proprietary, patent-and-royalty-free, general-purpose compressed audio format. [BSD]
minimp3 ★191 - Public domain, header-only MP3 decoder with clean-room implementation. [CC0]

Biology

Bioinformatics, Genomics, Biotech

libsequence - A C++ library for representing and analyzing population genetics data. [GPL]
SeqAn - Algorithms and data structures for the analysis of sequences with the focus on biological data. [BSD/3-clause]
Vcflib - A C++ library for parsing and manipulating VCF files. [MIT]
Wham ★54 ⏳1Y - Structural variants (SVs) in Genomes by directly applying association tests to BAM files. [MIT]

BitTorrent

jech/dht ★432 - BitTorrent DHT library in C. [MIT]
libtorrent ★1319 (a.k.a. libtorrent-rasterbar) - An efficient feature complete C++ bittorrent implementation. [BSD]
LibTorrent ★695 (a.k.a. libtorrent-rakshasa) - BitTorrent library. [GPL]
libutp ★684 - uTorrent Transport Protocol library. [MIT]

CLI

Console/Terminal User Interface, Command Line Interface

Argh! ★261 - A minimalist, frustration-free, header-only argument handler. [BSD]
Taywee/args ★398 - A simple header-only C++ argument parser library. [MIT]
Boost.Program_options - A library to obtain program options via conventional methods such as command line and config file. [Boost]
CLI11 ★244 - Header only single or multi-file C++11 library for simple and advanced CLI parsing. [BSD]
jarro2783/cxxopts ★794 - Lightweight C++ command line option parser. [MIT]
docopt.cpp ★565 - A library to generate option parser from docstring. [MIT/Boost]
gflags - Commandline flags module for C++. [BSD]
Ncurses - A terminal user interfaces. [MIT]
PDCurses ★226 - Public domain curses library with both source code and pre-compiled library available. [PublicDomain]
replxx ★125 - A readline and libedit replacement that supports UTF-8, syntax highlighting, hints, works on Unix and Windows. [BSD]
TCLAP - A mature, stable and feature-rich library for defining and accessing command line arguments in ANSI C++. [MIT]
termbox ★1261 - A C library for writing text-based user interfaces. [BSD]

Compression

Compression and Archiving Libraries

Brotli ★6048 - Brotli compression format. Developed by Google. [MIT]
bzip2 - A freely available, patent free, high-quality data compressor. [BSD]
FiniteStateEntropy ★670 - New generation entropy codecs : Finite State Entropy and Huff0.
PhysicsFS - A library to provide abstract access to various archives. It is intended for use in video games, and the design was somewhat inspired by Quake 3’s file subsystem. [zlib]
KArchive - A library for creating, reading, writing and manipulating file archives like zip and tar. It also provides transparent compression and decompression of data, using formats like gzip, via a subclass of QIODevice. [LGPL]
LZ4 - Extremely Fast Compression algorithm. [BSD]
LZFSE ★1415 ⏳1Y - LZFSE compression library and command line tool. Developed by Apple.
LZHAM - Lossless data compression library with a compression ratio similar to LZMA but with much faster decompression. [BSD]
LZMA - The default and general compression method of 7z format. [PublicDomain]
LZMAT - An extremely fast real-time lossless data compression library. [GPL]
miniz - Single C source file Deflate/Inflate compression library with zlib-compatible API, ZIP archive reading/writing, PNG writing. [Unlicense]
Minizip ★320 - Zlib with latest bug fixes that supports PKWARE disk spanning, AES encryption, and IO buffering. [zlib]
smaz ★655 ⏳2Y - Small strings compression library. [BSD]
Snappy - A fast compressor/decompressor. [BSD]
ZLib - A very compact compression library for data streams. [zlib]
zlib-ng ★419 - zlib for the “next generation” systems. Drop-In replacement with some serious optimizations. [zlib]
zstd ★7336 - Zstandard - Fast real-time compression algorithm. Developed by Facebook. [BSD]
ZZIPlib - Provides read access on ZIP-archives. [MPL/LGPL]

Concurrency

Concurrency and Multithreading

alpaka ★41 - Abstraction library for parallel kernel acceleration. [LGPLv3+]
ArrayFire ★2113 - A general purpose GPU library. [BSD]
Boost.Compute ★857 - A C++ GPU Computing Library for OpenCL. [Boost]
Bolt ★296 ⏳2Y - A C++ template library optimized for GPUs. [Apache2]
ck ★1311 - Concurrency primitives, safe memory reclamation mechanisms and non-blocking data structures. [BSD]
concurrentqueue ★2751 - A fast multi-producer, multi-consumer lock-free concurrent queue for C++11. [BSD,Boost]
Cpp-Taskflow ★362 - Fast C++ Parallel Programming with Task Dependencies. [MIT]
CUB ★436 - CUB provides state-of-the-art, reusable software components for every layer of the CUDA programming mode. [New BSD]
cupla ★12 - C++ API to run CUDA/C++ on OpenMP, Threads, TBB, … through Alpaka. [LGPLv3+]
C++React ★743 - A reactive programming library for C++11. [Boost]
Intel Parallel STL ★258 - Intel® implementation of C++17 STL for C++11 and above. [Apache2]
Intel TBB - Intel® Threading Building Blocks. [Apache2]
junction ★820 - A library of concurrent data structures in C++. [BSD]
libcds ★996 - A C++ library of Concurrent Data Structures. [BSD]
Libclsph ★32 ⏳2Y - An OpenCL based GPU accelerated SPH fluid simulation library. [MIT]
libdill ★819 - Introduces structured concurrency in C. [MIT]
libmill ★1993 - Introduces Go-style concurrency in C. [MIT]
moderngpu ★889 - moderngpu is a productivity library for general-purpose computing on GPUs. It is a header-only C++ library written for CUDA. The unique value of the library is in its accelerated primitives for solving irregularly parallel problems. [FreeBSD & Copyright, Sean Baxter]
NCCL ★589 - Optimized primitives for collective multi-GPU communication. [BSD]
OpenCL - The open standard for parallel programming of heterogeneous systems.
OpenMP - The OpenMP API.
RaftLib - The RaftLib C++ library, streaming/dataflow concurrency via C++ iostream-like operators [Apache2]
readerwriterqueue ★1019 - A fast single-producer, single-consumer lock-free queue for C++. [BSD]
Thrust - A parallel algorithms library which resembles the C++ Standard Template Library (STL). [Apache2]
HPX ★906 - A general purpose C++ runtime system for parallel and distributed applications of any scale. [Boost]
VexCL ★465 - A C++ vector expression template library for OpenCL/CUDA. [MIT]

Containers

C++ B-tree - A template library that implements ordered in-memory containers based on a B-tree data structure. [Apache2]
Colony ★85 - An unordered “bag”-type container which outperforms std containers in high-modification scenarios while maintaining permanent pointers to non-erased elements regardless of insertion/erasure. [zLib] website
Hashmaps ★149 ⏳2Y - Implementation of open addressing hash table algorithms in C++. [MIT]
Hopscotch map ★169 - A fast header-only hash map which uses hopscotch hashing for collisions resolution. [MIT]
LSHBOX ★157 ⏳1Y - A c++ toolbox of locality-sensitive hashing (LSH), provides several popular LSH algorithms, also support Python and MATLAB. [GPL]
plf::list ★35 - A std::list implementation which removes range splicing in order to enable cache-friendlier structure, yielding significant performance gains. [zLib] website
plf::stack ★11 - A replacement container for the std::stack container adaptor, with better performance than any std container in a stack context. [zLib] website
ring_span lite ★23 - A simplified implementation of Arthur O’Dwyer’s ring_span implementation ie. a circular buffer view. [MIT]
sparsepp ★701 - A fast, memory efficient hash map for C++. [BSD 3-clause]

Cryptography

Cryptography and Encryption Libraries

Bcrypt - A cross platform file encryption utility. Encrypted files are portable across all supported operating systems and processors. [BSD]
BeeCrypt - A portable and fast cryptography library. [LGPLv2.1+]
Botan - A crypto library for C++. [BSD-2]
Crypto++ ★1167 - A free C++ class library of cryptographic schemes. [Boost] website
digestpp ★37 - C++11 header-only message digest (hash) library. [PublicDomain]
GnuPG - A complete and free implementation of the OpenPGP standard. [GPL]
GnuTLS - A secure communications library implementing the SSL, TLS and DTLS protocols. [LGPL2.1]
Libgcrypt - A general purpose cryptographic library originally based on code from GnuPG. [LGPLv2.1+]
libhydrogen ★236 - A lightweight, secure, easy-to-use crypto library for constrained environments. [ISC]
LibreSSL - A free version of the SSL/TLS protocol forked from OpenSSL in 2014. [?]
libsodium ★5760 - P(ortable ackageable) NaCl-based crypto library, opinionated and easy to use. [ISC]
LibTomCrypt ★694 - A fairly comprehensive, modular and portable cryptographic toolkit. [WTFPL]
mbedTLS ★1411 - An open source, portable, easy to use, readable and flexible SSL library, previously known as PolarSSL. [Apache2] website
Nettle - A low-level cryptographic library. [LGPL]
OpenSSL ★7315 - A robust, commercial-grade, full-featured, and Open Source cryptography library. [Apache] website
retter ★24 ⏳1Y - A collection of hash functions, ciphers, tools, libraries, and materials related to cryptography.
s2n ★3127 - An implementation of the TLS/SSL protocols. [Apache]
Tiny AES in C ★1030 - Small portable AES128/192/256 in C. [PublicDomain]
Themis ★536 - crypto library for painless data security, providing symmetric and asymmetric encryption, secure sockets with forward secrecy, for mobile and server platforms. [Apache2]

Database

Database Libraries, SQL Servers, ODBC Drivers, and Tools

hiberlite ★411 - C++ Object-relational mapping for sqlite3. [BSD]
Hiredis ★3085 - A minimalistic C client library for the Redis database. [BSD]
LevelDB ★14117 - A fast key-value storage library written at Google that provides an ordered mapping from string keys to string values. [BSD]
LMDB - Very fast embedded key/value store with full ACID semantics. [OpenLDAP]
LMDB++ ★157 - C++11 wrapper for the LMDB embedded database library. [PublicDomain]
MongoDB C Driver ★411 - MongoDB client library for C. [Apache2]
MongoDB C++ Driver ★477 - C++ driver for MongoDB. [Apache2]
MongoDB Libbson ★279 - A BSON utility library. [Apache2]
MySQL++ - A C++ wrapper for MySQL’s C API. [LGPL]
redis3m ★134 ⏳1Y - Wrapper of hiredis with clean C++ interface, supporting sentinel and ready to use patterns. [Apache2]
RocksDB ★10716 - Embedded key-value store for fast storage from facebook. [BSD]
SimDB ★228 - High performance, shared memory, lock free, cross platform, single file, minimal dependencies, C++11 key-value store [Apache2]
SQLite - A completely embedded, full-featured relational database in a few 100k that you can include right into your project. [PublicDomain]
SQLiteC++ ★556 - SQLiteC++ (SQLiteCpp) is a smart and easy to use C++ SQLite3 wrapper. [MIT]
sqlite_modern_cpp ★312 - Header only C++14 wrapper around sqlite library. [MIT]
sqlite_orm ★336 - SQLite ORM light header only library for modern C++. [BSD-3-Clause]
TileDB ★330 - Fast Dense and Sparse Multidimensional Array DBMS. [MIT] website
upscaledb - An embedded “typed” key/value store with a built-in query interface. [GPLv3]

Debug

Debugging Libraries, Memory Leak and Resource Leak Detection, Unit Testing

backward-cpp ★972 - A beautiful stack trace pretty printer for C++. [MIT]
benchmark ★2486 - Google provided small microbenchmark support library. [Apache2]
Boost.Test - Boost Test Library. [Boost]
doctest ★1200 - The lightest feature rich C++ single header testing framework. [MIT]
Catch - A modern, C++-native, header-only, framework for unit-tests, TDD and BDD. [Boost]
Catch2 ★7000 - A modern, C++-native, header-only, test framework for unit-tests, TDD and BDD. [BSL-1.0]
Celero ★324 - C++ Benchmarking Framework. [Apache2]
CppUTest ★525 - Unit testing and mocking framework for C/C++. [BSD-3-clause]
CUTE - C++ Unit Testing Easier. [LGPL3]
CMocka - unit testing framework for C with support for mock objects. [Apache2]
CppUnit - C++ port of JUnit. [LGPL2]
CTest - The CMake test driver program. [BSD]
Deleaker - A tool for resource leak detection, including memory, GDI and handle leaks.
fff ★179 - A micro-framework for creating fake C functions. [MIT]
Google Mock - A library for writing and using C++ mock classes. [BSD]
Google Test ★8277 - Google C++ Testing Framework. [BSD]
ig-debugheap ★116 ⏳2Y - Multiplatform debug heap useful for tracking down memory errors. [BSD]
libtap ★152 ⏳1Y - Write tests in C. [GPL2]
MemTrack - Tracking memory allocations in C++.
microprofile - Profiler with web-view for multiple platforms. [PublicDomain]
MinUnit ★197 - A minimal unit testing framework for C self-contained in a single header file. [MIT]
Mockator - Eclipse CDT plug-in for C++ Seams and Mock Objects.
Nanotimer ★15 - A simple low-overhead cross-platform timer class for benchmarking. [zLib] website
Remotery ★963 - Single C File Profiler with Web Viewer. [Apache2]
UnitTest++ ★331 - A lightweight unit testing framework for C++. [MIT/X Consortium license]
utest.h ★46 - Single header unit testing framework for C and C++. [Unlicense]
VLD - Visual Leak Detector. A free, robust, open-source memory leak detection system for Visual C++.

Game Engine

Allegro - A cross-platform library mainly aimed for video games and multimedia programming. [zlib]
Banshee 3D ★2381 - Modern C++14 game engine with Vulkan support, fully featured editor and C# scripting. [LGPL3/Commercial]
Cocos2d-x - A multi-platform framework for building 2d games, interactive books, demos and other graphical applications. [MIT]
delta3d - A robust simulation platform. [LGPL2]
EnTT ★261 - Gaming meets modern C++. [MIT]
GamePlay ★2418 - A cross-platform native C++ game framework for creating 2D/3D mobile and desktop games. [Apache2]
Godot ★15280 - A fully featured, open source, MIT licensed, game engine. [MIT]
Grit - Community project to build a free game engine for implementing open world 3D games. [MIT]
KlayGE ★935 - a cross-platform open source game engine with plugin-based architecture. [GPLv2] website
Oxygine - A cross-platform 2D C++ game engine. [MIT]
Panda3D ★1131 - A game engine, a framework for 3D rendering and game development for Python and C++ programs. [Modified BSD] website
Polycode ★2348 - A cross-platform framework for creative code in C++ (with Lua bindings). [MIT] website
Torque2D ★1392 - An open-source and cross-platform C++ engine built for 2D game development. [MIT] website
Torque3D ★2807 - An open-source C++ engine built for 3D game development. [MIT] website
Urho3D - A free lightweight, cross-platform 2D and 3D game engine implemented in C++. Greatly inspired by OGRE and Horde3D. [MIT]

GUI

Graphic User Interface

CEGUI - Flexible, cross-platform GUI library.
FLTK - Fast, light, cross-platform C++ GUI toolkit. [GPL2]
GacUI ★1263 - GPU Accelerated C++ User Interface, with WYSIWYG developing tools, XML supports, built-in data binding and MVVM features. [Ms-PL]
GTK+ - A multi-platform toolkit for creating graphical user interfaces. [LGPL]
gtkmm - The official C++ interface for the popular GUI library GTK+. [LGPL]
imgui ★11251 - Immediate Mode Graphical User Interface with minimal dependencies. [MIT]
libRocket - libRocket is a C++ HTML/CSS game interface middleware. [MIT]
libui ★7365 - Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports. [MIT]
MyGUI - Fast, flexible and simple GUI. [MIT]
nana - Nana is a cross-platform library for GUI programming in modern C++ style. [Boost]
NanoGui ★2073 - A minimalistic cross-platform widget library for OpenGL 3.x or higher. [BSD]
nuklear ★10355 - A single-header ANSI C gui library. [PublicDomain]
QCustomPlot - Qt plotting widget without further dependencies. [GPLv3]
Qwt - Qt Widgets for Technical Applications. [Own based on LGPL]
QwtPlot3D - A feature-rich Qt/OpenGL-based C++ programming library, providing essentially a bunch of 3D-widgets. [zlib]
Sciter - Sciter is an embeddable HTML/CSS/scripting engine aimed to be used as an UI layer of modern desktop applications. [Free/Commercial]
wxWidgets - A C++ library that lets developers create applications for Windows, Mac OS X, Linux and other platforms with a single code base. [Own LGPL]
Yue ★1709 - A library for creating native cross-platform GUI apps. [LGPLv2]

Graphics

bgfx ★4754 - A cross-platform rendering library. [BSD]
bs::framework ★710 - Modern C++14 library for the development of real-time graphical applications. [MIT]
Cairo - A 2D graphics library with support for multiple output devices. [LGPL2 or Mozilla MPL]
Diligent Engine ★159 - A modern cross-platform low-level 3D graphics library. [Apache2]
DirectXTK ★996 - A collection of helper classes for writing DirectX 11.x code in C++. [MIT]
GLFW ★3720 - A simple, cross-platform OpenGL wrangling library. [zlib/libpng]
herebedragons ★1306 - A basic 3D scene implemented with various engines, frameworks or APIs. [MIT] website
Horde3D ★722 - A small 3D rendering and animation engine. [EPL]
Ion ★1316 - A small and efficient set of libraries for building cross-platform client or server applications that use 3D graphics. [Apache2] website
Irrlicht - A high performance realtime 3D engine written in C++. [zlib]
libigl ★1168 - Simple C++ geometry processing library. [MPL2]
magnum ★1791 - Lightweight and modular C++11/C++14 graphics middleware for games and data visualization. [MIT] website
NanoVG ★2493 - Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations. [Zlib]
Ogre 3D - A scene-oriented, real-time, flexible 3D rendering engine (as opposed to a game engine) written in C++. [MIT]
OpenSceneGraph - An open source high performance 3D graphics toolkit. [OSGPL]
OpenSubdiv ★2023 - Pixar’s library for evaluating and rendering subdivision surfaces on CPU and GPU. [Modified Apache2]
OpenVDB - Library and tools for storing, editing, and rendering volumetric datasets. [MPL2]
Panda3D - A framework for 3D rendering and game development for Python and C++. [BSD]
Partio ★224 - Library for wrangling particle data, with support for most common file formats. [Modified BSD]
Skia ★2161 - A complete 2D graphic library for drawing Text, Geometries, and Images. [BSD] webpage
urho3d ★2312 - Cross-platform rendering and game engine. [Many different, mostly MIT]

Image Processing

Boost.GIL - Generic Image Library.
CImg - A small, open source, C++ toolkit for image processing. [Own LGPL or GPL]
CxImage - An image processing and conversion library to load, save, display, transform BMP, JPEG, GIF, PNG, TIFF, MNG, ICO, PCX, TGA, WMF, WBMP, JBG, J2K images. [zlib]
FreeImage - An open source library that supports popular graphics image formats and others as needed by today’s multimedia applications. [GPL2 or GPL3]
GD ★344 - GD Graphics Library, famously used in PHP for image loading/manipulation & thumbnail generation. [custom permissive license, requires mention in user docs] website
DCMTK - DICOM Toolkit.
GDCM - Grassroots DICOM library.
ITK - An open-source, cross-platform system for image analysis. [Apache2 from ITK 4.0]
libvips ★2197 - A fast image processing library with low memory needs. [LGPL] website
Magick++ - ImageMagick program interfaces for C++. [Apache2]
MagickWnd - ImageMagick program interfaces for C. [Apache2]
OpenCV - Open source computer vision. [BSD]
OpenEXR - Cross-platform library for high dynamic range imaging. [Modified BSDF]
OpenImageIO ★748 - Powerful image and texture wrangling library with support for a wide number of common lossy and RAW formats. [Modified BSD]
tesseract-ocr - An OCR engine. [Apache2]
TinyEXIF ★17 - Tiny ISO-compliant C++ EXIF and XMP parsing library for JPEG. [MIT]
Video++ ★496 - A C++14 high performance video and image processing library. [MIT]
VIGRA ★267 - A generic C++ computer vision library for image analysis. [MIT X11]
VTK - Open-source, freely available software system for 3D computer graphics, image processing and visualization. [BSD]

Internationalization

gettext - GNU `gettext’. [GPL2]
IBM ICU - A set of C/C++ and Java libraries providing Unicode and Globalization support. [ICU]
libiconv - An encoding conversion library between different character encodings. [GPL]
utf8.h ★354 - Single header utf8 string functions for C and C++. [Unlicense]

Inter-process communication

Apache Thrift - Efficient cross-language IPC/RPC, works between C++, Java, Python, PHP, C#, and many more other languages. Originally developed by Facebook. [Apache2]
Cap’n Proto - Fast data interchange format and capability-based RPC system. [MIT]
gRPC ★15677 - A high performance, open source, general-purpose RPC framework. [BSD] website
libjson-rpc-cpp ★396 - JSON-RPC framework for C++ servers and clients. [MIT]
nanomsg ★4211 - A simple high-performance implementation of several “scalability protocols”. [MIT] website
simple-rpc-cpp ★16 ⏳2Y - A simple RPC wrapper generator to C/C++ functions. [BSD]
WAMP - Provides RPC and pub/sub messaging patterns. (various implementations, various languages)
xmlrpc-c - A lightweight RPC library based on XML and HTTP. [BSD]
ZeroMQ - High-speed, modular asynchronous communication library. [LGPL]

JSON

Boost.PropertyTree - A property tree parser/generator that can be used to parse XML/JSON/INI/Info files. [Boost]
frozen ★272 - JSON parser and generator for C/C++. [GPL & GPL2]
Jansson ★1711 - C library for encoding, decoding and manipulating JSON data. [MIT]
jbson ★26 ⏳2Y - jbson is a library for building & iterating BSON data, and JSON documents in C++14. [Boost]
JeayeSON ★100 ⏳1Y - A very sane (header only) C++ JSON library. [BSD]
json ★9767 - JSON for Modern C++. [MIT]
JSON++ ★297 - A JSON parser in C++. [MIT]
json.h ★158 - A simple one header/one source solution to parsing JSON in C and C++. [Unlicense]
json-c ★1321 - A JSON implementation in C. [MIT]
JsonCpp ★2857 - A C++ library for interacting with JSON. [MIT]
json-parser ★840 - Very low footprint JSON parser written in portable ANSI C. [BSD]
json11 ★1569 - A tiny JSON library for C++11. [MIT]
json-voorhees ★109 - JSON library for C++. Support for C++11. No dependencies, fast and dev-friendly. [Apache2]
jute ★20 - Very simple C++ JSON Parser. [PublicDomain]
libjson ★198 - A JSON parser and printer library in C. easy to integrate with any model. [LGPL]
libjson - Lightweight JSON library. [?]
LIBUCL ★950 - Universal configuration library parser [?]
PicoJSON ★664 - A header-file-only, JSON parser serializer in C++. [BSD]
qt-json - A simple class for parsing JSON data into a QVariant hierarchy and vice versa. [GPLv3]
QJson ★195 - A qt-based library that maps JSON data to QVariant objects. [LGPL2]
RapidJSON - A fast JSON parser/generator for C++ with both SAX/DOM style API. [MIT]
ujson - µjson is a a small, C++11, UTF-8, JSON library. [MIT]
YAJL ★1726 - A fast streaming JSON parsing library in C. [ISC]

Logging

Blackhole ★124 - Attribute-based logging framework, which is designed to be fast, modular and highly customizable. [MIT]
Boost.Log - Designed to be very modular and extensible. [Boost]
Easylogging++ - Single header only, extremely light-weight high performance logging library for C++11 (or higher) applications. [MIT] website
G3log ★374 - Asynchronous logger with Dynamic Sinks. [PublicDomain]
glog ★2151 - C++ implementation of the Google logging module.
Log4cpp - A library of C++ classes for flexible logging to files, syslog, IDSA and other destinations. [LGPL]
log4cplus ★529 - A simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. [BSD & Apache2]
loguru ★469 - A lightweight C++ logging library. [PublicDomain]
plog ★496 - Portable and simple C++ logging library. [MPL2]
reckless ★216 - Low-latency, high-throughput, asynchronous logging library for C++. [MIT]
spdlog ★3584 - Super fast, header only, C++ logging library.
templog - A very small and lightweight C++ library which you can use to add logging to your C++ applications. [Boost]

Machine Learning

Caffe ★24656 - A fast framework for neural networks. [BSD]
Caffe2 ★8083 - A lightweight, modular, and scalable deep learning framework. [Apache2] website
CCV ★6208 - C-based/Cached/Core Computer Vision Library, A Modern Computer Vision Library. [BSD]
Fido ★361 - A highly-modular C++ machine learning library for embedded electronics and robotics. [MIT] website
MeTA ★434 - A modern C++ data sciences toolkit. [MIT] website
Minerva ★632 ⏳2Y - A fast and flexible system for deep learning. [Apache2]
mlpack ★2224 - A scalable c++ machine learning library. [LGPLv3] website
OpenCV - Open Source Computer Vision Library. [BSD] website
Recommender ★172 ⏳1Y - C library for product recommendations/suggestions using collaborative filtering (CF). [BSD]
RNNLIB ★621 - RNNLIB is a recurrent neural network library for sequence learning problems. [GPLv3]
SHOGUN ★2136 - The Shogun Machine Learning Toolbox. [GPLv3]
sofia-ml - The suite of fast incremental algorithms for machine learning. [Apache2]
VLFeat ★1042 - The VLFeat open source library implements popular computer vision algorithms specialising in image understanding and local featurexs extraction and matching. [BSD-2-Clause] website
xgboost ★12521 - Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Scala, C++ and more. Runs on single machine, Hadoop, Spark, Flink and DataFlow. [Apache2]

Math

Apophenia ★128 ⏳1Y - A C library for statistical and scientific computing [GPL2]
Armadillo ★315 - A high quality linear algebra library (matrix maths) for the C++ language, aiming towards a good balance between speed and ease of use. The syntax (API) is deliberately similar to Matlab. [MPL2] website
blaze - high-performance C++ math library for dense and sparse arithmetic. [BSD]
Boost.Multiprecision - provides higher-range/precision integer, rational and floating-point types in C++, header-only or with GMP/MPFR/LibTomMath backends. [Boost]
ceres-solver - C++ library for modeling and solving large complicated nonlinear least squares problems from google. [BSD]
CGAL ★911 - Collection of efficient and reliable geometric algorithms. [LGPL&GPL] website
cml - free C++ math library for games and graphics. [Boost]
Eigen - A high-level C++ library of template headers for linear algebra, matrix and vector operations, numerical solvers and related algorithms. [MPL2]
ExprTK - The C++ Mathematical Expression Toolkit Library (ExprTk) is a simple to use, easy to integrate and extremely efficient run-time mathematical expression parser and evaluation engine. [MIT]
GLM ★2354 - Header-only C++ math library that matches and inter-operates with OpenGL’s GLSL math. [MIT]
GMTL - Graphics Math Template Library is a collection of tools implementing Graphics primitives in generalized ways. [GPL2]
GMP - A C library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating-point numbers. [LGPL3 & GPL2]
MIRACL - A Multiprecision Integer and Rational Arithmetic Cryptographic Library. [AGPL]
muparser - muParser is an extensible high performance math expression parser library written in C++. [MIT]
NT2 - A SIMD-optimized numerical template library that provides an interface with MATLAB-like syntax. [Boost]
LibTomMath ★263 - A free open source portable number theoretic multiple-precision integer library written entirely in C. [PublicDomain & WTFPL] website
linmath.h ★318 ⏳1Y - A lean linear math library, aimed at graphics programming. [WTFPL]
OpenBLAS ★2071 - An optimized BLAS library based on GotoBLAS2 1.13 BSD version. [BSD 3-clause] website
QuantLib ★983 - A free/open-source library for quantitative finance. [Modified BSD] website
Vc ★457 - SIMD Vector Classes for C++. [BSD]
Versor - A (fast) Generic C++ library for Geometric Algebras, including Euclidean, Projective, Conformal, Spacetime (etc).
Wykobi - A C++ library of efficient, robust and simple to use C++ 2D/3D oriented computational geometry routines. [MIT]

Multimedia

GStreamer - A library for constructing graphs of media-handling components. [LGPL]
LIVE555 Streaming Media - Multimedia streaming library using open standard protocols (RTP/RTCP, RTSP, SIP). [LGPL]
libVLC - libVLC (VLC SDK) media framework. [GPL]
MediaInfoLib ★124 - Convenient unified display of the most relevant technical and tag data for video and audio files. [BSD]
QtAv ★1596 - A multimedia playback framework based on Qt and FFmpeg to write a player easily. [LGPL] website
SDL - Simple DirectMedia Layer. [zlib]
SFML ★4323 - Simple and Fast Multimedia Library. [zlib] website

Networking

ACE - An OO Network Programming Toolkit in C++. [?MIT?]
Boost.Asio - A cross-platform C++ library for network and low-level I/O programming. [Boost]
Breep ★33 - Event based, high-level C++14 peer-to-peer library. [EUPL-1.1 (OSI approved)]
C++ REST SDK ★2779 - C++ REST SDK (previously named Casablanca). [Apache2]
Restbed ★734 - C++11 Asynchronous RESTful framework. [AGPL]
cpp-netlib - A collection of open-source libraries for high level network programming. [Boost]
cpr ★1699 - A modern C++ HTTP requests library with a simple but powerful interface. Modeled after the Python Requests module. [MIT] website
curlcpp ★342 - An object oriented C++ wrapper for CURL(libcurl). [MIT]
Dyad.c ★986 - Asynchronous networking for C. [MIT]
ENet ★1059 - Reliable UDP networking library. [MIT] website
evpp ★1135 - C++ high performance networking with TCP/UDP/HTTP protocols. [BSD]
HTTP Parser ★4006 - A http request/response parser for C. [MIT]
libcurl - Multiprotocol file transfer library. [MIT/X derivate license]
libjingle - Google talk voice and P2P interoperability library. [BSD]
libquic ★947 ⏳1Y - A QUIC protocol library extracted from Chromium’s QUIC Implementation. [BSD]
libwebsockets ★1687 - A lightweight pure C WebSocket implementation that provides both client and server libraries. [LGPL2.1 + static link exception] website
Mongoose ★4593 - Extremely lightweight webserver. [GPL2]
Muduo ★4438 - A C++ non-blocking network library for multi-threaded server in Linux. [BSD]
nghttp2 ★2403 - HTTP/2 C Library. [MIT] website
nope.c - A C language-based ultra-light software platform for scalable server-side and networking applications. Think node.js for C programmers. [GPL2]
Onion ★1379 - HTTP server library in C designed to be lightweight and easy to use. [Apache2/GPL2]
POCO - C++ class libraries and frameworks for building network- and internet-based applications that run on desktop, server, mobile and embedded systems. [Boost] website
Proxygen ★5600 - Facebook’s collection of C++ HTTP libraries including an easy to use HTTP server. [BSD]
RakNet - A cross platform, open source, C++ networking engine for game programmers. [BSD]
Seasocks ★293 - Simple, small, C++ embeddable webserver with WebSockets support. [BSD]
Silicon - A high performance, middleware oriented C++14 http web framework. [MIT]
Tufão ★381 - An asynchronous web framework for C++ built on top of Qt. [LGPL2]
uWebSockets ★9120 - µWS is one of the most lightweight, efficient & scalable WebSocket & HTTP server implementations available. [Zlib]
wdt ★2126 - An embeddedable library (and command line tool) aiming to transfer data between 2 systems as fast as possible over multiple TCP paths. [BSD-3-Clause]
WebSocket++ ★2371 - C++/Boost Asio based websocket client/server library. [BSD]

PDF

Libraries for parsing and manipulating PDF documents.

libharu ★738 - A free, cross platform, open-sourced software library for generating PDF. [zlib]
MuPDF - A lightweight PDF, XPS, and E-book viewer. [AGPL/Commercial]
Poppler - Open-source multi-backend PDF rendering library based on the xpdf-3.0 code base. [GPLv2/GPLv3]

Physics

Dynamics simulation engines

Box2D ★2649 - A 2D physics engine for games. [BSD-like]
Bullet ★3655 - A 3D physics engine for games. [zlib] website
Chipmunk ★1151 - A fast and lightweight 2D game physics library. [MIT] website
LiquidFun ★3236 - A 2D physics engine for games. [BSD-like]
Newton Dynamics ★370 - An integrated solution for real time simulation of physics environments. [zlib]
ODE - Open Dynamics Engine - An open source, high performance library for simulating rigid body dynamics. [BSD&LGPL]
ofxBox2d ★248 - openFrameworks wrapper for Box2D. [BSD-like]
Simbody ★1215 - High-performance C++ multibody dynamics/physics library for simulating articulated biomechanical and mechanical systems like vehicles, robots, and the human skeleton. [Apache2]

Regular Expression

CppVerbalExpressions ★246 ⏳1Y - C++ regular expressions made easy. [MIT]
PCRE - A regular expression C library inspired by the regular expression capabilities in Perl. [BSD]
RE2 ★2662 - A software library for regular expressions via a finite-state machine using automata theory. [BSD-3-Clause]
SLRE ★394 - Super Light Regexp engine for C/C++. [GPLv2/Commercial]

Robotics

MOOS-IvP - A set of open source C++ modules for providing autonomy on robotic platforms, in particular autonomous marine vehicles.
MRPT - Mobile Robot Programming Toolkit. [BSD]
PCL ★2602 - Point Cloud Library is a standalone, large scale, open project for 2D/3D image and point cloud processing [BSD] website
Robotics Library (RL) - A self-contained C++ library for robot kinematics, motion planning and control. [BSD]
RobWork - A collection of C++ libraries for simulation and control of robot systems. [Apache2]
ROS - Robot Operating System provides libraries and tools to help software developers create robot applications. [BSD]

Scientific Computing

FFTW - A C library for computing the DFT in one or more dimensions. [GPL]
GSL - GNU scientific library. [GPL]
TileDB ★330 - Fast Dense and Sparse Multidimensional Array DBMS. [MIT] website
Trilinos ★270 - High performance PDE solvers. [BSD]
Torch ★7930 - A scientific computing framework with wide support for machine learning algorithms that puts GPUs first. [BSD-3-Clause] website

Scripting

Boost.Python - A C++ library which enables seamless interoperability between C++ and the Python programming language. [Boost]
cppimport ★687 - Import C++ files directly from Python! [MIT]
CppSharp ★1110 - Tools and libraries to glue C/C++ APIs to high-level languages. [MIT]
ChaiScript ★1301 - An easy to use embedded scripting language for C++. [BSD] website
ctypes.sh ★1144 - A foreign function interface for bash. [MIT]
Cython ★3173 - Cython is an optimising static compiler for both the Python programming language and the extended Cython programming language (based on Pyrex). It makes writing C extensions for Python as easy as Python itself. [Apache] website
djinni ★1957 - A tool for generating cross-language type declarations and interface bindings. [Apache2]
Duktape ★3257 - An embeddable Javascript engine with compact footprint. [MIT] website
JavaCpp ★2433 - The missing bridge between Java and native C++. [Apache2]
libffi ★1013 - A portable foreign-function interface library. [MIT] website
Lua - A minimal and fast scripting engine for configuration files and basic application scripting. [MIT]
luacxx ★97 - C++11 API for creating Lua bindings. [MIT]
nbind ★1338 - Magical headers that make your C++ library accessible from JavaScript. [MIT]
pybind11 ★3525 - Seamless operability between C++11 and Python. [BSD]
SIP - C or C++ Bindings Generator for Python v2 and v3. [GPL]
SWIG ★2264 - A wrapper/interface Generator that let you link your c++ code to Javascript, Perl, PHP, Python, Tcl and Ruby. [GPL/Output not licensed] website
V7 ★1135 - An embedded JavaScript engine. [GPL2]
V8 - A fast JavaScript engine by Google that can be embedded into any C++ application. [BSD]
ChakraCore ★7084 -A JavaScript engine by Microsoft that can be embedded into nodejs. [MIT]

Serialization

cereal ★1553 - A C++11 library for serialization. [BSD]
cppcodec ★148 - Header-only C++11 library to encode/decode base64, base32 and hex with consistent, flexible API. [MIT]
FlatBuffers ★9497 - A Memory efficient serialization library. [Apache2]
MessagePack ★1311 - Efficient binary serialization format “like JSON” for C and C++. [Apache2] website
protobuf ★27173 - Protocol Buffers - Google’s data interchange format. [BSD]
protobuf-c ★908 - Protocol Buffers implementation in C. [BSD]
SimpleBinaryEncoding ★1363 - encoding and decoding application messages in binary format for low-latency applications. [Apache2]

Sorting

Timsort ★77 ⏳1Y - A templated stable sorting function which outperforms quicksort-based algorithms including std::sort, for reversed or semi-sorted data. [MIT]

Video

libvpx - VP8/VP9 Codec SDK. [BSD]
FFmpeg - A complete, cross-platform solution to record, convert and stream audio and video. [LGPL2/GPL2]
libde265 ★667 - Open h.265 video codec implementation. [LGPL] website
OpenH264 ★3003 - Open Source H.264 Codec. [BSD] website
Theora - A free and open video compression format. [BSD]
Vireo ★548 - A lightweight and versatile video processing library by Twitter. [MIT]

Virtual Machines

CarpVM ★939 ⏳2Y - “interesting” VM in C. Let’s see how this goes. [GPLv3]
MicroPython ★6689 - Aims to put an implementation of Python 3.x on a microcontroller. [MIT]
TinyVM ★2412 - A small, fast, lightweight virtual machine written in pure ANSI C. [MIT]

Web Application Framework

Civetweb ★863 - Provides easy to use, powerful, C/C++ embeddable web server with optional CGI, SSL and Lua support. [MIT]
CppCMS - A Free High Performance Web Development Framework (not a CMS). [LGPLv3]
Crow ★4211 - Crow is C++ micro web framework (inspired by Python Flask). [BSD]
Cutelyst ★393 - A C++ Web Framework built on top of Qt, using the simple approach of Catalyst (Perl) framework. [LGPLv2.1+] website
Kore - ultra fast and flexible web server / framework for web applications developed in C. [ISC]
libOnion - lightweight library to help you create webservers in C programming language. [LGPLv3]
lwan ★4199 - Experimental, scalable, high performance HTTP server. [GPL2]
Pistache - Pistache is a C++ REST framework written in pure C++11 with no external dependency. [Apache2]
QDjango ★147 - A web framework written in C++ and built on top of the Qt library. Where possible it tries to follow django’s API, hence its name. [LGPL]
TreeFrog Framework ★492 - High-speed and full-stack web application framework based on C++ and Qt, which supports HTTP and WebSocket protocol (with O/R mapping). [BSD] website
Wt - A C++ library for developing web applications. [GPL/Commercial]

XML

XML is crap. Really. There are no excuses. XML is nasty to parse for humans, and it’s a disaster to parse even for computers. There’s just no reason for that horrible crap to exist. - Linus Torvalds

Boost.PropertyTree - A property tree parser/generator that can be used to parse XML/JSON/INI/Info files. [Boost]
Expat - An XML parser library written in C. [MIT]
Libxml2 - The XML C parser and toolkit of Gnome. [MIT]
libxml++ - An XML Parser for C++. [LGPL2]
PugiXML - A light-weight, simple and fast XML parser for C++ with XPath support. [MIT]
RapidXml - An attempt to create the fastest XML parser possible, while retaining useability, portability and reasonable W3C compatibility. [Boost]
TinyXML - A simple, small, minimal, C++ XML parser that can be easily integrating into other programs. [zlib]
TinyXML2 ★2135 - A simple, small, efficient, C++ XML parser that can be easily integrating into other programs. [zlib]
TinyXML++ - A completely new interface to TinyXML that uses MANY of the C++ strengths. Templates, exceptions, and much better error handling. [MIT]
Xerces-C++ - A validating XML parser written in a portable subset of C++. [Apache2]

Miscellaneous

Useful libraries or tools that don’t fit in the categories above or maybe just not categorised yet

access_profiler ★49 ⏳4Y - A tool to count accesses to member variables in c++ programs. [GPL3]
American fuzzy lop a.k.a. afl-fuzz - Crazy fuzzing tool that automatically discovers bugs given time and minimal example input. [Apache2]
Better Enums ★530 - Reflective enums (to string, iteration). Single header. [BSD] website
Better String - An alternative to the string library for C which is more functional and does not have buffer overflow overrun problems. Also includes a C++ wrapper. [BSD, GPL2]
Boost.Signals - An implementation of a managed signals and slots system. [Boost]
{fmt} ★3931 - Small, safe and fast formatting library for C++. [Simplified BSD]
FastFormat - Fast, Safe C++ Formatting inspired by log4j and Pantheios [Simplified BSD]
casacore - A set of c++ core libraries derived from aips++. [LGPL]
QtVerbalExpressions ★30 ⏳3Y - This Qt lib is based off of the C++ VerbalExpressions library. [MIT]
c-smart-pointers ★691 ⏳1Y - Smart pointers for the (GNU) C programming language. [MIT]
cxx-prettyprint ★331 - A pretty printing library for C++ containers. [Boost]
DynaPDF - An easy-to-use PDF generation library. [Commercial]
gcc-poison ★129 ⏳4Y - A simple header file for developers to ban unsafe C/C++ functions from applications.
Kangaru ★93 - A dependency injection container for C++11 and C++14. [MIT]
Klib ★2100 - Small and lightweight implementations of common algorithms and data structures. [MIT]
libsigc++ - A typesafe callback system for standard C++. [LGPL]
libcpuid ★141 - A small C library for x86 CPU detection and feature extraction. [BSD]
libevil ★14 ⏳6Y - The Evil License Manager. [GPLv3]
libnih ★43 ⏳4Y - A lightweight library of C functions and structures. [GPL2.1]
libusb - A universal USB library which allows for portable access to USB devices. [LGPL2]
Mach7 ★907 - A Pattern-matching library for C++. [BSD]
pdqsort ★905 - Pattern-defeating quicksort. [zlib]
PHP-CPP ★1022 - A library to build PHP extensions with C++. [Apache2] website
Remote Call Framework - Inter-process communication framework for C++. [GPL2/Commercial]
Scintilla - A free source code editing component. [MIT]
SDS ★2288 - Simple Dynamic Strings library for C. [BSD]
semver.c ★105 - A semver parser and render in ANSI C. [MIT]
Serial Communication Library ★569 - Cross-platform, Serial Port library written in C++. [MIT]
sigslot - C++ Signal/Slot Library. [PublicDomain]
Stage ★187 - Mobile robot simulator. [GPL2]
stdman ★409 Formatted C++11/14 stdlib man pages (from cppreference). [MIT]
stb ★7458 - A range of single-file libraries for C/C++. [PublicDomain]
StrTk - A C++ library consisting of high performance string processing routines. [MIT]
ub-canaries ★102 ⏳2Y - A collection of C/C++ programs that try to get compilers to exploit undefined behavior.
value-category-cheatsheet ★334 A PDF cheatsheet for lvalues, rvalues, and the like. [Jank copyleft]
VarTypes - A feature-rich, object-oriented framework for managing variables in C++ / Qt4. [LGPL]
ZBar - A barcode scanner library, which allows to scan photos/images/video streams for barcodes and return their value. [LGPL2]
ZXing ★18990 - An open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages. [Apache]

Software

Software for creating a development environment.

Compiler

List of C or C++ compilers

8cc ★3359 - A Small C Compiler.
c ★1594 - Compile and execute C “scripts” in one go! [MIT]
Clang - A C compiler for LLVM. Supports C++11/14/1z C11. Developed by LLVM Team. [NCSA]
GCC - GNU Compiler Collection. Supports C++11/14/1z C11 and OpenMP. [GNU GPL3]
PCC - A very old C compiler. Supports C99.
Intel C++ Compiler - Developed by Intel.
LLVM - Collection of modular and reusable compiler and toolchain technologies.
Microsoft Visual C++ - MSVC, developed by Microsoft.
Open WatCom - Watcom C, C++, and Fortran cross compilers and tools. [Sybase Open Watcom Public License]
Oracle Solaris Studio - C, C++ and Fortran compiler for SPARC and x86. Supports C++11. Available on Linux and Solaris. [OTN Developer License]
TCC - Tiny C Compiler. [LGPL]

Online Compiler

List of online C or C++ compilers

codepad - An online compiler/interpreter, and a simple collaboration tool.
CodeTwist - A simple online compiler/interpreter, where you can paste your C, C++ or Java code and execute it online and see results.
coliru - Online compiler/shell with support for various C++ compilers.
Compiler Explorer - An interactive compiler with assembly output available.
CompileOnline - Compile and Execute C++ online on Linux.
Ideone - An online compiler and debugging tool which allows you to compile source code and execute it online in more than 60 programming languages.
repl.it - A powerful yet simple tools and platforms for educators, learners, and developers.
Rextester - Online compiler which provides several compilers(Clang, GCC, MSVC) and several editors.
Rise4Fun - Online Visual C++ compiler.
Wandbox - An online Clang/GCC compiler with Boost available.

Debugger

List of C or C++ debuggers

Comparison of debuggers - A list of Debuggers from Wikipedia.
GDB - GNU Debugger.
LLDB - The LLDB Debugger.
Metashell - An interactive template metaprogramming shell which includes the MDB metadebugger.
Valgrind - A tool for memory debugging, memory leak detection, and profiling.
x64dbg - An open-source x64/x32 debugger for windows.

Integrated Development Environment

List of C or C++ nominal IDEs.

Anjuta DevStudio - The GNOME IDE. [GPL3]
AppCode - an IDE for Objective-C, C, C++, and JavaScript development built on JetBrains’ IntelliJ IDEA platform.
Cevelop - Cross-platform C and C++ IDE based on Eclipse CDT with additional plug-ins.
CLion - Cross-platform C and C++ IDE from JetBrains.
Code::Blocks - A free C, C++ and Fortran IDE.
CodeLite - Another cross-plaform, free C and C++ IDE. [GPL2 with an exception for plugins]
color_coded ★678 - A vim plugin for libclang-based highlighting. [MIT]
Dev-C++ - A portable C/C++/C++11 IDE.
Eclipse CDT - A fully functional C and C++ IDE based on the Eclipse platform.
Geany - Small, fast, cross-platform IDE. [GPL]
IBM VisualAge - A family of computer integrated development environments from IBM.
Irony-mode ★707 - A C/C++ minor mode for Emacs powered by libclang.
juCi++ ★866 - Cross-platform, lightweight C++ IDE with libclang integration. [MIT]
KDevelop - A free, open source IDE.
Microsoft Visual Studio - An IDE from Microsoft.
NetBeans - An IDE for developing primarily with Java, but also with other languages, in particular PHP, C/C++, and HTML5.
Qt Creator - A cross-platform C++, JavaScript and QML IDE which is part of the SDK for Qt.
rtags ★1266 - A c/c++ client/server indexer with for integration with emacs based on clang.
Xcode - Developed by Apple.
YouCompleteMe - YouCompleteMe is a fast, as-you-type, fuzzy-search code completion engine for Vim.
cquery ★1418 - A C++ code completion engine for vscode, emacs, vim, etc.

Build Systems

Bazel - A multi-language, fast and scalable build system from Google. [Apache]
Bear ★721 - A tool to generate compilation database for clang tooling. [GPLv3]
cget ★232 - Cmake package retrieval used to download and install cmake packages. [Boost]
clib ★2909 - Package manager for the C programming language. [MIT]
CMake - Cross-platform free and open-source software for managing the build process of software using a compiler-independent method. [BSD]
C++ Archive Network - Cross-platform C++ Dependency Manager with a lot of packages available.
Conan - C/C++ Package Manager, open sourced. [MIT]
CPM ★637 ⏳1Y - A C++ Package Manager based on CMake and Git.
FASTBuild - High performance, open-source build system supporting highly scalable compilation, caching and network distribution.
Hunter - CMake driven cross-platform package manager for C++. [BSD-2]
MesonBuild - An open source build system meant to be both extremely fast, and, even more importantly, as user friendly as possible.
Ninja - A small build system with a focus on speed.
Scons - A software construction tool configured with a Python script.
Sconsolidator - Scons build system integration for Eclipse CDT.
Spack - A flexible package manager that supports multiple versions, configurations, platforms, and compilers. [LGPLv2.1]
tundra ★242 - High-performance code build system designed to give the best possible incremental build times even for very large software projects.
tup - File-based build system that monitors in the background for changed files.
Premake - A tool configured with a Lua script to generate project files for Visual Studio, GNU Make, Xcode, Code::Blocks, and more across Windows, Mac OS X, and Linux.
Vcpkg ★3253 - VC++ Packaging Tool for Windows.
waf ★706 - Python-based framework for configuring, compiling and installing applications. [BSD] website

Static Code Analysis

List of tools for improving quality and reducing defects by code analysis

Cppcheck - A tool for static C/C++ code analysis. - source ★1708
CppDepend - Simplifies managing a complex C/C++ code base by analyzing and visualizing code dependencies, by defining design rules, by doing impact analysis, and comparing different versions of the code.
PVS-Studio - A tool for bug detection in the source code of programs, written in C, C++ and C#.
cpp-dependencies ★384 - Tool to check C++ #include dependencies (dependency graphs created in .dot format). [Apache]
include-what-you-use ★1033 - A tool for use with clang to analyze includes in C and C++ source files. website
Infer ★8598 - A static analyzer for Java, C and Objective-C. [BSD]
OCLint - A static source code analysis tool to improve quality and reduce defects for C, C++ and Objective-C. - source ★2666
Clang Static Analyzer - A source code analysis tool that finds bugs in C, C++, and Objective-C programs.
Linticator - Eclipse CDT integration of Pc-/FlexeLint.
List of tools for static code analysis - A list of tools for static code analysis from Wikipedia.

Coding Style Tools

ClangFormat - A tool to format C/C++/Obj-C code.
Clang-Tidy - Clang-based C++ linter tool.
Uncrustify ★19 ⏳1Y - Code beautifier.

Resources

Various resources, such as books, websites, and articles for improving your C++ development skills and knowledge.

API Design

Articles

Fantastic C++ related articles.

CppCon 2017 Presentation Materials ★948 - CppCon 2017 Presentation Materials.
CppCon 2016 Presentation Materials ★1433 - CppCon 2016 Presentation Materials.
CppCon 2015 Presentation Materials ★1408 ⏳1Y - CppCon 2015 Presentation Materials.
CppCon 2014 Presentation Materials ★1895 ⏳2Y - CppCon 2014 Presentation Materials.
C++Now 2017 Presentations ★247 - Presentation materials presented at C++Now 2017.
C++Now 2016 Presentations ★70 ⏳1Y - Presentation materials presented at C++Now 2016.
C++Now 2015 Presentations ★196 ⏳2Y - Presentation materials presented at C++Now 2015.
C++Now 2014 Presentations ★401 ⏳4Y - Presentation materials presented at C++Now 2014.
C++Now 2013 Presentations ★192 ⏳2Y - Presentation materials presented at C++Now 2013.
C++Now 2012 Presentations ★162 ⏳5Y - Presentation materials presented at C++Now 2012.

Books

Fantastic C or C++ related books.

List of Free C or C++ Books
Free C Books - vhf/free-programming-books/C.
Free C++ Books - vhf/free-programming-books/C++.
cppbestpractices ★1436 - Collaborative Collection of C++ Best Practices.

Coding Style

C++ Core Guidelines ★18566 - “Official” set of C++ guidelines, reviewed by the author of C++.
C++ Dos and Don’ts - The Chromium Projects > For Developers > Coding Style > C++ Dos and Don’ts.
google-styleguide ★14567 - Style guides for Google-originated open-source projects.
Google C++ Style Guide
GNU Coding Standard
Linux kernel coding style
LLVM Coding Standards

Talks

CppCon Talks - The C++ conference.
Quick game development with C++11/C++14 ★79 - CppCon 2014 talk by Vittorio Romeo.
Presentation on Hana for C++Now 2015 ★7 ⏳1Y

Videos

Fantastic C or C++ related videos.

List of C or C++ YouTube Videos
Awesome C Programming Tutorials in Hi Def [HD] - A collection of detailed C Programming Language Tutorials for Beginners and New Programmers.
C++ - by VoidRealms.
C++ Qt Programming - by VoidRealms.
C++ Programming Tutorials Playlist - TheNewBoston Official Buckys C++ Programming Tutorials Playlist.
C++ Programming Tutorials from thenewboston - These are all of thenewboston’s C++ programming tutorials.
C++ GUI with Qt Playlist - Official Playlist for thenewboston C++ GUI with Qt tutorials.
C Programming Tutorials - All of TheNewBoston’s C programming tutorials are right here.
Bo Qian’s playlist - Boost Library, C++ Standard Library, Modern C++, Advanced C++, Advanced STL, …

Websites

Useful C or C++ related websites.

Standard C++ - News, Status & Discussion about Standard C++.
CppCon - The C++ Conference.
C++ reference - C++98, C++03, C++11, C++14 reference.
cplusplus.com - The C++ Resources Network.
C FAQ - C frequently asked questions.
C++ FAQ - C++ frequently asked questions.
C++ FQA Lite - C++ frequently questioned answers.
Guru of the Week - A regular series of C++ programming problems created and written by Herb Sutter.
Meeting C++
C++ Quiz - C++ quiz in which you propose to find errors in code fragments of open source projects.
Udemy C++ Courses and Tutorials
C++ Hints - Every business day hints about most often C++ mistakes and ways to solve them from PVS-Studio Team.
C++ tutorial - A user ranked online tutorial bank site displaying multiple courses to learn C++ from.

Weblogs

Useful C or C++ related weblogs.

Coding For Speed - Coding For Speed DOT COM, Less Execution Time.
Eric Niebler
Sticky Bits
Paul Fultz II’s Blog
ridiculousfish - Will It Optimize?
Embedded in Academia

Other Awesome Projects

Collection of useful codes, snippets, …

algorithms ★2252 - Algorithms & Data Structures in C++.
c-algorithms ★1313 - C algorithms library.
C++ Awesome Pack ★123 - Contains some awesome c++ codes, packed in one.

Other Awesome Lists

Other amazingly awesome lists

lists ★5050 - List of (awesome) lists curated on GitHub.
awesome-awesomeness ★21639 - A curated list of awesome awesomeness.
awesome ★87749 - A curated list of awesome lists.
C++ links ★1349 - A categorized list of C++ resources.
Awesome C++ - getAwesomeness()’s mirror.
Awesome C++ - LibHunt’s mirror.
Awesome C 1
Awesome C ★1289 2
AwesomePerfCpp ★1252 - A curated list of awesome C/C++ performance optimization resources.
free-programming-books - List of Freely Available Programming Books.
Inqlude - The Qt library archive.
papers-we-love ★30182 - Papers from the computer science community to read and discuss.
awesome-algorithms ★4734 - A curated list of awesome places to learn and/or practice algorithms.
awesome-talks ★2189 - A lot of screencasts, recordings of user group gatherings and conference talks.
Projects ★23601 - A list of practical projects that anyone can solve in any programming language.
Awesome interview questions - A list of lists of interview questions for the most popular technologies, including C and C++.
nothings/single_file_libs ★3702 - List of single-file C/C++ libraries.

Contributing

Please see CONTRIBUTING for details. —

This list is a copy of fffaraz/awesome-cpp with ranks