A free C++ Web Development Framework aimed for Rapid Web Application Development which is designed and tuned to handle extremely high loads and uses modern C++ as primary development language. [Open Source, LGPL]

An object-oriented, cross-platform C++ library which provides handling logic for the Jabber protocol. [Open Source]

Provides a simple stream socket interface for C++.

Provides synchronous send and receive of a buffer, plus ping and resolve address. The class encapsulates a listener thread which can be started and stopped.

A C++ wrapper for libpcap (the packet capture library), which provides a high level interface to packet capture systems. [Open Source, GPL]

A portable C++ Jabber/XMPP library which takes care of the low-level protocol stuff. Additionally, it offers high-level interfaces for interaction with an XMPP server. [Open Source, GPL]

Provides a simple to use interface for creating and using client sockets. Can connect to the destination server through an unlimited number of chainable proxies, SOCKS4 and SOCKS5 servers if anonymity or security is a priority. Supports SSL as well as...

A collection of light-weight C++ classes which help to create a select-based event-driven applications, especially simple TCP servers and clients. [Open Source, LGPL]

Aa C++ library making socket based client/server programming easier.

A cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach.