Topic
Open-source startups tagged #chat
8 open-source startups in this directory carry the GitHub topic #chat. 7 pushed code within 30 days of the snapshot of 2026-09-22, 1 has been quiet for 31–120 days, 0 have not pushed in over 120 days. Topics are set by each repository’s own maintainers, so this is what those projects chose to call themselves rather than a category we assigned.
7 of 8 pushed within 30 days of the snapshot of 2026-09-22. How we measure it →
The list
All 8, most-starred first.
The last column is the most recent push GitHub reported to us on 2026-09-22. It counts a push to any branch, by a person or a bot — it is not a claim that anyone is maintaining the project, and a quiet repository may be a finished one.
| Project | What it does | Stars | Ship status | Last verified push |
|---|---|---|---|---|
| RocketChat/Rocket.Chat | The Secure CommsOS™ for mission-critical operations | 46.2K | Still shipping | Sep 22, 2026 |
| khoj-ai/khoj | Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free. | 37.5K | Slowed | Aug 2, 2026 |
| zulip/zulip | Zulip server and web application. Open-source team chat that helps teams stay productive and focused. | 25.9K | Still shipping | Sep 22, 2026 |
| simplex-chat/simplex-chat | SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱! | 19.5K | Still shipping | Sep 22, 2026 |
| openimsdk/open-im-server | IM Chat OpenClaw | 16.7K | Still shipping | Sep 17, 2026 |
| LemmyNet/lemmy | 🐀 A decentralised discussion platform for communities. | 14.6K | Still shipping | Sep 22, 2026 |
| tinode/chat | Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots | 13.5K | Still shipping | Sep 13, 2026 |
| owncast/owncast | Take control over your live stream video by running it yourself. Streaming + chat out of the box. | 11.5K | Still shipping | Sep 18, 2026 |
Related collections
Sideways from here.
The 8 largest other topics in the directory, then the other ways to slice it. Every count is as of the snapshot of 2026-09-22.
Snapshot of 2026-09-22 · 721 repos in the directory · every number on this page is measured against that date, not against today. What this measurement cannot tell you →