head to head · open source
quivr vs assistant-ui
quivr has 39,624 GitHub stars, 3,731 forks, 9 open issues and last shipped yesterday. assistant-ui has 12,912 stars, 1,304 forks, 207 open issues and last shipped yesterday. quivr leads on adoption by 207% (39,624 vs 12,912 stars). quivr is written in Go under MIT; assistant-ui is written in TypeScript under MIT. quivr has attracted 9% as many forks as stars, assistant-ui 10%. assistant-ui was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chatbot), so they are genuine substitutes rather than adjacent tools.
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
| quivr | assistant-ui | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 13K |
| License | MIT | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.7K | ⑂ 1.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick quivr if
- You weight community size — 40K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick assistant-ui if
- You want the assistant-ui feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and assistant-ui fits your workflow better
About quivr
Quivr V2 An open source engine that turns continuous content streams into search and monitoring. Quivr V2 ingests content durably, makes it searchable within seconds, enriches it in the background and lets you follow a topic over time. The core stays generic: formats, AI models and business rules belong in plugins, so you can adapt Quivr to your domain without forking the platform. Status: evaluation stage. The API is v0 and may change without notice. Do not run it in production yet. Why Quivr V2 Durable before fast. A write is acknowledged only once it is committed; outages delay processing, they never lose or…
read the full quivr overview →
About assistant-ui
Product · Documentation · Examples · Discord · Contact Sales The UX of ChatGPT in your React app 💬🚀 assistant ui is an open source TypeScript/React library to build production grade AI chat experiences fast. Installation The fastest path is the CLI, which scaffolds a Next.js app or adds the styled components to an existing project: Or install the packages directly: Usage useChatRuntime connects to the Vercel AI SDK out of the box. Swap it for useLangGraphRuntime , useDataStreamRuntime , or any custom runtime to integrate with your own backend. What you get Composable primitives : build any chat UX from Thread…
read the full assistant-ui overview →
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Frequently asked questions
Is quivr or assistant-ui more popular?
quivr has 39,624 GitHub stars and assistant-ui has 12,912. quivr has the larger community by that measure.
Are quivr and assistant-ui free?
Both are open source. quivr is licensed under MIT and assistant-ui under MIT. Neither carries a licence fee.
What is the difference between quivr and assistant-ui?
quivr is written in Go and assistant-ui 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, quivr or assistant-ui?
Choose quivr if you want the larger community (39,624 stars) or its MIT licence terms. Choose assistant-ui if its feature set, stack or MIT licence fits better. Both are self-hostable.