head to head · open source
Chatwoot vs Cossistant
Chatwoot has 38,752 GitHub stars, 9,429 forks, 1,377 open issues and last shipped yesterday. Cossistant has 738 stars, 51 forks, 4 open issues and last shipped 2 months ago. Chatwoot leads on adoption by 5,151% (38,752 vs 738 stars). Chatwoot is written in Ruby under a custom or non-standard licence; Cossistant is written in TypeScript under AGPL-3.0. Chatwoot has attracted 24% as many forks as stars, Cossistant 7%. Chatwoot was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Chatwoot | Cossistant | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 738 |
| License | Custom / other | AGPL-3.0 |
| Written in | Ruby | TypeScript |
| Last push | 2026-11-02 | 2026-09-18 |
| Forks | ⑂ 9.4K | ⑂ 51 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Chatwoot if
- You weight community size — 39K stars and counting
- You want the Custom / other license terms
- Your stack matches Ruby
- You value the larger contributor base for long-term maintenance
pick Cossistant if
- You want the Cossistant feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Cossistant fits your workflow better
About Chatwoot
Chatwoot The modern customer support platform, an open source alternative to Intercom, Zendesk, Salesforce Service Cloud etc. Chatwoot is the modern, open source, and self hosted customer support platform designed to help businesses deliver exceptional customer support experience. Built for scale and flexibility, Chatwoot gives you full control over your customer data while providing powerful tools to manage conversations across channels. ✨ Captain – AI Agent for Support Supercharge your support with Captain, Chatwoot’s AI agent. Captain helps automate responses, handle common queries, and reduce agent…
read the full Chatwoot overview →
About Cossistant
Open source chat <Support / widget for React Issues · Docs · Discord About Cossistant Cossistant is an open source chat support widget for the React ecosystem. Built by developers, for developers who need a flexible, customizable chat solution that seamlessly integrates into their applications. We provide headless components, real time messaging, and complete backend infrastructure—all with a code first, API driven philosophy that prioritizes developer experience and AI friendly documentation. Get Started Using Cossistant in your app? → Check out our Quickstart Guide Contributing to Cossistant? → Read the…
read the full Cossistant overview →
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Frequently asked questions
Is Chatwoot or Cossistant more popular?
Chatwoot has 38,752 GitHub stars and Cossistant has 738. Chatwoot has the larger community by that measure.
Are Chatwoot and Cossistant free?
Both are open source. Chatwoot has no licence declared in this registry, and Cossistant is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Chatwoot and Cossistant?
Chatwoot is written in Ruby and Cossistant in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Chatwoot or Cossistant?
Choose Chatwoot if you want the larger community (38,752 stars) or its Custom / other licence terms. Choose Cossistant if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.