libcurl

9.8 10.0 L2 C

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

Muduo

9.6 0.7 L4 C++

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

uWebSockets

9.5 6.4 C++

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

KCP

9.5 5.2 C

:zap: KCP - A Fast and Reliable ARQ Protocol

cpp-httplib

9.4 9.6 C++

A C++ header-only HTTP/HTTPS server and client library

C++ Workflow

9.3 8.8 C++

C++ Parallel Computing and Asynchronous Networking Framework

Mongoose

9.3 9.5 L3 C

Embedded web server, with TCP/IP network stack, MQTT and Websocket

POCO

9.1 9.4 L2 C++

The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems.

C++ REST SDK

8.9 1.2 L1 C++

The C++ REST SDK is a Microsoft project for cloud-based client-server communication in native code using a modern asynchronous C++ API design. This project aims to help C++ developers connect to and interact with services.

Proxygen

8.9 9.7 L4 C++

A collection of C++ HTTP libraries including an easy to use HTTP server.

WebSocket++

8.9 2.4 L2 C++

C++ websocket client/server library

cpr

8.5 8.5 L2 C++

C++ Requests: Curl for People, a spiritual port of Python Requests.

libwebsockets

8.4 9.6 L2 C

canonical libwebsockets.org networking library

RakNet

8.3 0.0 HTML

DISCONTINUED. RakNet is a cross platform, open source, C++ networking engine for game programmers.

nghttp2

8.2 9.4 L1 C++

nghttp2 - HTTP/2 C Library and tools

evpp

8.0 0.0 C++

A modern C++ network library for developing high performance network services in TCP/UDP/HTTP protocols.

Boost.Beast

8.0 7.7 C++

HTTP and WebSocket built on Boost.Asio in C++11

Simple-Web-Server

7.7 0.0 L4 C++

DISCONTINUED. A very simple, fast, multithreaded, platform independent HTTP and HTTPS server and client library implemented using C++11 and Boost.Asio. Created to be an easy way to make REST resources available from C++ applications.

wdt

7.6 4.2 C++

DISCONTINUED. 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.

PcapPlusPlus

7.5 9.2 C++

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 and PF_RING.

netcode.io

6.9 6.0 C

Secure client/server connections over UDP

cpp-netlib

6.9 3.0 L2 C++

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

Restbed

6.8 8.0 L4 C++

Corvusoft's Restbed framework brings asynchronous RESTful functionality to C++ applications.

libquic

6.7 0.0 C++

QUIC, a multiplexed stream transport over UDP

Onion

6.7 0.0 L4 C

C library to create simple HTTP servers and Web Applications.

dotenv-linter

6.3 7.7 Rust

⚡️Lightning-fast linter for .env files. Written in Rust 🦀

Silicon

6.2 0.0 L4 C++

A high performance, middleware oriented C++14 http web framework please use matt-42/lithium instead

Dyad.c

6.2 0.0 L3 C

DISCONTINUED. Asynchronous networking for C

D++

5.8 8.5 C++

C++ Discord API Bot Library - D++ is Lightweight and scalable for small and huge bots!

Simple-WebSocket-Server

5.7 0.0 L4 C++

DISCONTINUED. A very simple, fast, multithreaded, platform independent WebSocket (WS) and WebSocket Secure (WSS) server and client library implemented using C++11, Boost.Asio and OpenSSL. Created to be an easy way to make WebSocket endpoints in C++.

RESTinio

5.5 7.5 C++

Cross-platform, efficient, customizable, and robust asynchronous HTTP(S)/WebSocket server C++ library with the right balance between performance and ease of use

libhttpserver

5.3 2.0 C++

C++ library for creating an embedded Rest HTTP server (and more)

nanoMODBUS

5.1 6.0 C

A compact MODBUS RTU/TCP C library for embedded/microcontrollers

IXWebSocket

5.0 6.0 C++

websocket and http client and server library, with TLS support and very few dependencies

Seasocks

4.9 6.0 C++

Simple, small, C++ embeddable webserver with WebSockets support

curlcpp

4.8 3.6 C++

An object oriented C++ wrapper for CURL (libcurl)

Tufão

4.8 0.0 L2 C++

An asynchronous web framework for C++ built on top of Qt

nope.c

4.6 0.0 L1 C

WAFer is a C language-based software platform for scalable server-side and networking applications. Think node.js for C programmers.

net_skeleton

4.5 0.0 L3 C

Async non-blocking multi-protocol networking library for C/C++

verdigris

4.4 3.0 C++

Qt without moc: set of macros to use Qt without needing moc

mailio

4.1 7.6 C++

mailio is a cross platform C++ library for MIME format and SMTP, POP3, IMAP protocols. It is based on the standard C++ 17 and Boost library.

netLink

3.3 4.8 L1 C++

Socket and Networking Library using msgpack.org[C++11]

bredis

2.9 0.0 C++

Boost::ASIO low-level redis client (connector)

Breep

2.8 0.0 C++

C++ peer to peer library, built on the top of boost

tntnet

2.7 5.4 L1 C++

Tntnet is a web application server for web applications written in C++.

QuantumGate

2.6 0.0 C++

QuantumGate is a peer-to-peer (P2P) communications protocol, library and API written in C++.

NetIF

1.6 6.1 C++

Header-only C++14 library for getting addresses associated with network interfaces without name lookups on Windows, macOS, Linux, and FreeBSD

LiteNetLib++

1.5 2.3 C++

C++ lightweight and easy to use reliable UDP library for games

sock_connect

1.1 4.2 C++

Wrapper for linux TCP/UDP/unix/USB socket connections

ACE

-

An OO Network Programming Toolkit in C++. [?MIT?]

libjingle

-

Google talk voice and P2P interoperability library. [BSD]