nghttp2 - HTTP/2 C Library and tools

Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.

Our high-performance, lightweight, open source HTTP server

Stellite project is a client library and server application that offers an easy way to develop, build, and implement client/server running primarily over the QUIC protocol developed by Google as part of the Chromium project.

libquic: QUIC (Quick UDP Internet Connections)

ns3-based network simulator for QUIC testing

C++ server and client APIs for WebTransport.

A 'ping' equivalent tool for QUIC.

A QUIC implementation in C++11 coroutine

Congestion control algorithms evaluation on ns3

QUIC implementation for ns-3

Reliable and Fast UDP Connections

高性能网络设计——网络编程（网络io与select、poll、epoll，reactor原理与实现、http服务器实现、websocket协议与服务器实现）与网络原理（服务器百万并发，网络协议栈，UDP可靠传输协议QUIC），协程框架NtyCo的实现，用户态协议栈NtyTcp的实现

Unreal integration plugin to add 4Players ODIN technology into your game

Official, lightweight C++ client SDK for Iggy.rs message streaming.

Subset of chromium repo: net/quic/ net/tools/quic/ net/third_party/quic/

Flow - Modern C++ toolkit for async loops, logs, config, benchmarking, and more [See also `ipc` repo]

A QUIC-based netcat-like with mutual authentication.