Open source chat <Support /> widget for React
[Issues](https://github.com/cossistant/cossistant/issues)
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[Docs](https://cossistant.com/docs)
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[Discord](https://discord.gg/vQkPjgvzcc)
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 Contributors Guide
Packages
- @cossistant/react - React SDK with headless hooks and primitives
- @cossistant/next - Next.js-specific bindings and utilities
For full documentation, visit cossistant.com/docs
Tech Stack
- Monorepo (Turborepo)
- Bun
- React & Next.js
- TypeScript
- Hono (API)
- tRPC
- Drizzle ORM
- Better Auth
- TailwindCSS
- WebSockets
- Docker (Postgres + Redis)
License
This project is licensed under the AGPL-3.0 for non-commercial use.
Commercial Use
For commercial use or deployments requiring a setup fee, please contact us for a commercial license at anthony@cossistant.com.
By using this software, you agree to the terms of the license.
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