Open source chat-application projects
Every project in the registry tagged chat-application, ranked by real GitHub adoption.
All-in-one workspace for project, chat, and docs
Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots
Create powerful chatbots without coding
Self-hosted team workspace with chat, docs, and databases
Create custom spaces to chat, game, and connect globally
fast & lightweight self-hosted messenger
Secure, scalable chat server for modern applications
Related tags
Frequently asked questions
How many open source chat-application projects are there?
This registry tracks 7 projects tagged chat-application, with 60,104 GitHub stars between them. The most-adopted is Huly at 27,700 stars.
Are these chat-application projects free to use?
Yes — 5 of the 7 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which chat-application project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these chat-application projects still maintained?
5 of the 7 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.