head to head · open source
Chatwoot vs Cossistant
Chatwoot has 36,913 GitHub stars, 8,958 forks, 1,377 open issues and last shipped yesterday. Cossistant has 722 stars, 49 forks, 4 open issues and last shipped 2 months ago. Chatwoot leads on adoption by 5,013% (36,913 vs 722 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 | ★ 37K | ★ 722 |
| License | Custom / other | AGPL-3.0 |
| Written in | Ruby | TypeScript |
| Last push | 2026-09-17 | 2026-08-04 |
| Forks | ⑂ 9.0K | ⑂ 49 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Chatwoot if
- You weight community size — 37K 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 is a Ruby based, open source, self hosted customer support platform that consolidates live chat, email, and social messaging into one omnichannel inbox, positioned as an open alternative to Intercom, Twilio, Zendesk, and Salesforce Service Cloud.
read the full Chatwoot overview →
About Cossistant
Cossistant is an open source, AI native customer support platform for React and Next.js developers and SaaS startups that need a customizable chat support widget with AI support agents, real time messaging, and complete backend infrastructure they can host themselves.
read the full Cossistant overview →
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Frequently asked questions
Is Chatwoot or Cossistant more popular?
Chatwoot has 36,913 GitHub stars and Cossistant has 722. 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 (36,913 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.