An Open Source Machine Learning Framework for Everyone

A framework for building native applications using React

Bitcoin Core integration/staging tree

Protocol Buffers - Google's data interchange format

An open-source C++ library developed and used at Facebook.

The open-source database for the realtime web.

Simple, secure & standards compliant web server for the most demanding of applications

Event-driven network library for multi-threaded Linux server in C++11

Cap'n Proto serialization/RPC system - core tools and C++ library

The 2013 edition of the Source SDK

High performance server-side application framework

A Detailed Cplusplus Concurrency Tutorial 《C++ 并发编程指南》

Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger protocol in C++

Interactive, thoroughly customizable maps in native Android, iOS, macOS, Node.js, and Qt applications, powered by vector tiles and OpenGL

OpenThread released by Google is an open-source implementation of the Thread networking protocol

Mapnik is an open source toolkit for developing mapping applications

Fiber/coroutine support for v8 and node.

Chromium-based cross-platform / cross-language application framework

Change C++ code at runtime

The C++ Network Library Project -- cross-platform, standards compliant networking library.

[not maintained] Lightweight JavaScript library operating system for the cloud

QUIC, a multiplexed stream transport over UDP

Simple operating system in C++, written from scratch

Nov 20 2017 -- A distributed open source search engine and spider/crawler written in C/C++ for Linux on Intel/AMD. From gigablast dot com, which has binaries for download. See the README.md file at…

MEGA C++ SDK

C++11 port for the Node: native performance and modern simplicity.

A GraphQL query parser in C++ with C and C++ APIs

C++ implementation of R*-tree, an MVR-tree and a TPR-tree with C API

C/C++ source code indexer and navigator

Yet another write-optimized storage engine, using buffered B-tree algorithm inspired by TokuDB