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MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
HTTP(S)/WS(S)/TCP Tunnels to localhost using only SSH.
F-Stack is an user space network development kit with high performance based on DPDK, FreeBSD TCP/IP stack and coroutine API.
SuperSocket is a high-performance, extensible socket server application framework for .NET. It provides a robust architecture for building custom network communication applications with support for multiple protocols including TCP, UDP, and WebSocket.
LaravelS is an out-of-the-box adapter between Laravel/Lumen and Swoole.
A modern C++ network library for developing high performance network services in TCP/UDP/HTTP protocols.
Lightweight, facility, high performance golang based game server framework
the LIBpcap interface to various kernel packet capture mechanism
PcapPlusPlus is a multiplatform C++ library for capturing, parsing and crafting of network packets. It is designed to be efficient, powerful and easy to use. It provides C++ wrappers for the most popular packet processing engines such as libpcap, Npcap, WinPcap, DPDK, AF_XDP, WinDivert and PF_RING.
Ultra fast and low latency asynchronous socket server & client C# .NET Core library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution
Warp speed Data Transfer (WDT) is an embeddedable library (and command line tool) aiming to transfer data between 2 systems as fast as possible over multiple TCP paths.
C/C++ WebRTC network library featuring Data Channels, Media Transport, and WebSockets
Asynchronous streaming communication for Clojure - web server, web client, and raw TCP/UDP
Actionhero is a realtime multi-transport nodejs API Server with integrated cluster capabilities and delayed tasks
A C++ bare metal environment for Raspberry Pi with USB (32 and 64 bit)
mTCP: A Highly Scalable User-level TCP Stack for Multicore Systems
The fully compliant, embeddable high-performance Go MQTT v5 server for IoT, smarthome, and pubsub
TCP/UDP client/server library for Java, based on Kryo
simple, fast, reliable websocket server & client, supports running over tcp/kcp/unix domain socket. keywords: ws, proxy, chat, go, golang...
TCP/IP packet demultiplexer. Download from:
🚀Gev is a lightweight, fast non-blocking TCP network library / websocket server based on Reactor mode. Support custom protocols to quickly and easily build high-performance servers.
Ultra fast and low latency asynchronous socket server & client C++ library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution
Miniscule cross-platform eventing, networking & crypto for async applications
Edit and replay captured network traffic at arbitrary speeds — a suite of pcap tools for *NIX and Windows.