Zulip
Zulip server and web application. Open-source team chat that helps teams stay productive and focused. observed · 2026-08-28
Health v2 · maintenance only
94/100
- Activity 99
- Release rhythm 85
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 42
- age_days: 3995
- days_rel: 23
- days_push: 7
- n_releases_24m: 18
Adoption not part of the score
25774 stars · 10131 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Zulip is an open-source team chat application with unique topic-based threading that combines the best of email and real-time chat. It includes a Python/Django server, web app, and companion desktop and mobile clients, and can be self-hosted or used via Zulip Cloud.
Use cases
- self-host a slack alternative for my team
- team chat with threaded conversations for remote work
- open source community chat platform
- chat app for a university or research group
- migrate from slack to an open-source chat
- run a chat server for thousands of users
- async communication tool for distributed teams
When to choose
- you want a fully open-source, self-hostable Slack alternative with no vendor lock-in
- your team relies heavily on asynchronous communication and needs conversations organized by topic
- you need to support large organizations, open-source communities, or education at scale
- you want 130+ native integrations, bots, and a REST API
- you need both cloud and self-hosted options with export/import between them
When to avoid
- your team only needs lightweight real-time chat and finds topic threading overhead unnecessary
- you want a minimal chat with a tiny resource footprint or simple deployment
- you need a chat product with a large marketplace of third-party apps like Slack's
- you prefer a proprietary SaaS with managed enterprise support contracts only
Facets
application · maturity stable
chat-interface webhook api-framework self-hosted search-engine email messaging-platforms developer-tools self-hosted real-time python cross-platform self-hosted browser team-chat slack-alternative topic-based-threading async-communication open-source-chat zulip integrations remote-work open-source web-server javascript docker mobile desktop
7 sources
- readme: https://github.com/zulip/zulip · fetched 2026-08-28 · f7cdc0d57204
- homepage: https://zulip.com · fetched 2026-08-29 · cced9eb79e36
- site_page: https://zulip.com/features · fetched 2026-08-29 · 48bcaa577fa8
- site_page: https://zulip.com/help/getting-started-with-zulip · fetched 2026-08-29 · 701e170fff29
- site_page: https://zulip.com/integrations · fetched 2026-08-29 · b86c15d55676
- site_page: https://zulip.com/plans · fetched 2026-08-29 · 47e67383f765
- site_page: https://zulip.com/case-studies/atolio · fetched 2026-08-29 · c257b3d03a08
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| zulip/zulip | main | 94 |
| zulip/zulip-mobile | frontend | 71 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem