Browse free open source Messaging platforms and projects for Windows below. Use the toggles on the left to filter open source Messaging platforms by OS, license, language, programming language, and project status.
You can message and share files inside your intranet without a server.
A universal instant messaging (IM) program
Development toolkit for Web Services and XML data bindings for C & C++
A smaller, faster, and easier IM client
Telegram Desktop messaging app
The first messaging platform operating without user identifiers
An instant messaging client for XMPP networks
The game engine for everyone
WhatsApp library for NodeJS that connects through the browser app
Elegant Facebook Messenger desktop app
A New Kind of Instant Messaging
Private messenger for Windows, Mac, and Linux
Open source machine learning framework to automate text conversations
A reference implementation of the SimpleX Messaging Protocol
Franz is a free messaging app for services like WhatsApp, Slack, etc,
A hex editor for WeChat/QQ/TIM
MSN compatible messenger application
Telegraph is a Laravel package for fluently interacting with Telegram
Free and Open Source messaging and emailing app
A GNU/Linux operating system accessible for visually impaired.
The cult-favourite eMail client formerly known as Qualcomm Eudora
ADAMANT decentralized Messenger, progressive web application
Desktop client for Facebook Messenger
Tock, the open source conversational AI toolkit
Mossawir Lan Messenge 3, Sever less Peer 2 Peer Lan messenger