Zulip
Open SourceSelf-hostableThreaded team chat that scales with focus.
4.522K starsAlternative to Slack, Discord
Overview
Zulip's topic-based threading model keeps conversations organized even in busy organizations. It's an open-source team chat designed so async and remote teams never lose the thread.
Why pick Zulip over Slack
- Own your data instead of trusting Slack's servers
- No per-seat pricing — grow without ballooning costs
- Zulip is open source: audit it, fork it, extend it
- Self-host for full privacy and compliance control
Key features
- Topic-based threading within channels
- Powerful search and keyboard navigation
- Markdown, code blocks, and LaTeX
- Integrations and incoming webhooks
- Self-hosted or cloud
Pros & cons
Screenshots
Installation
Install on Ubuntu
curl -fL https://download.zulip.com/server/zulip-server-latest.tar.gz | tar -xz && ./zulip-server-*/scripts/setup/installFrequently asked questions
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