A Tox-based instant messaging and video chat client.

Open source, themeable and extendable discord-compatible native Spacebar client

An open-source social networking server

Main repository with patches and required resources

企业IM即时通讯定制平台，百万级高并发、高性能、可扩展、安全、高交互体验的企业通信和协作im平台。包含通讯服务、客户端（PC、Android、iOS）、Web门户（用于集成企业应用）、WebAPI。

An open-source social networking desktop client (windows+macosx+linux)

An instant messaging client with a terminal-based user interface.

Open and secure instant messaging protocol built from scratch by three hobbyists using Rust, C++ and Java

Command line instant messenger inspired by centericq/centerim

libpurple client network daemon

A NodeJS Fosscord library

Matrix client network daemon using matrix-nio

🗨️ Simple chat application with Client and Server for Windows.

Matrix client network daemon using the Matrix Python SDK

OBIMP (Open Binary Instant Messaging Protocol) client library.

XMPP client network daemon using slixmpp

Mattermost client network daemon using the Mattermost Golang Driver

Basic network daemon library for nuqql

Instant messaging app for desktop, mobile and Android.

UI designs and experiments for an instant messaging client