- github.com/fffaraz/awesome-cpp A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny things.
- github.com/rigtorp/awesome-modern-cpp A collection of resources on modern C++.
- github.com/nothings/single_file_libs List of single-file C/C++ libraries.
- github.com/Mooophy/Cpp-Primer C++ Primer 5 answers
- github.com/Light-City/CPlusPlusThings Stories About C Plus Plus
- github.com/changkun/modern-cpp-tutorial Modern C++ Tutorial: C++11/14/17/20 On the Fly
- https://github.com/huihut/interview C/C++ 技术面试基础知识总结，包括语言、程序库、数据结构、算法、系统、网络、链接装载库等知识
- github.com/SamyPesse/How-to-Make-a-Computer-Operating-System How to Make a Computer Operating System in C++
- github.com/SerenityOS/serenity The Serenity Operating System
- https://github.com/Alinshans/MyTinySTL Achieve a tiny STL in C++11
- github.com/xtaci/algorithms Algorithms & Data structures in C++.
- github.com/BehaviorTree/BehaviorTree.CPP Behavior Trees Library in C++. Batteries included.
- github.com/grpc/grpc The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
- github.com/openframeworks/openFrameworks openFrameworks is a community-developed cross platform toolkit for creative coding in C++.
- github.com/libcpr/cpr C++ Requests: Curl for People, a spiritual port of Python Requests.
- github.com/yhirose/cpp-httplib A C++ header-only HTTP/HTTPS server and client library
- github.com/facebook/proxygen A collection of C++ HTTP libraries including an easy to use HTTP server.
- github.com/chenshuo/muduo Event-driven network library for multi-threaded Linux server in C++11
- github.com/filecxx/FileCentipede Cross-platform internet download/upload manager for HTTP(S), FTP(S), SSH, magnet-link, BitTorrent, ed2k, and online videos. WebDAV client, FTP client, SSH client.
- github.com/dragonflydb/dragonfly A modern replacement for Redis and Memcached
- github.com/apache/trafficserver Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.
- github.com/Tencent/MMKV An efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, and POSIX.
- github.com/google/re2 RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library
- github.com/nlohmann/json JSON for Modern C++
- github.com/Tencent/rapidjson A fast JSON parser/generator for C++ with both SAX/DOM style API
- github.com/zeromq/libzmq ZeroMQ core engine in C++, implements ZMTP/3.1
- github.com/ocornut/imgui Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
- github.com/flashlight/flashlight A C++ standalone library for machine learning
- github.com/apple/foundationdb FoundationDB - the open source, distributed, transactional key-value store
- github.com/duckdb/duckdb DuckDB is an in-process SQL OLAP Database Management System
- github.com/google/leveldb LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.
- github.com/OSGeo/gdal GDAL is an open source X/MIT licensed translator library for raster and vector geospatial data formats.
- github.com/qgis/QGIS QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)
- github.com/cginternals/glbinding A C++ binding for the OpenGL API, generated using the gl.xml specification.
- github.com/guillaumeblanc/ozz-animation Open source c++ skeletal animation library and toolset
- github.com/microsoft/SEAL Microsoft SEAL is an easy-to-use and powerful homomorphic encryption library.