head to head · open source
AstrBot vs assistant-ui
AstrBot has 45,879 GitHub stars, 3,368 forks, 1,516 open issues and last shipped 2 days ago. assistant-ui has 12,936 stars, 1,311 forks, 207 open issues and last shipped yesterday. AstrBot leads on adoption by 255% (45,879 vs 12,936 stars). AstrBot is written in Python under AGPL-3.0; assistant-ui is written in TypeScript under MIT. AstrBot has attracted 7% 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
| AstrBot | assistant-ui | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 13K |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-03 | 2026-11-04 |
| Forks | ⑂ 3.4K | ⑂ 1.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick AstrBot if
- You weight community size — 46K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- 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 AstrBot
简体中文 ｜ 繁體中文 ｜ 日本語 ｜ Français ｜ Español ｜ Русский Documentation ｜ Blog ｜ Roadmap ｜ Issue Tracker ｜ Email Support AstrBot is an open source all in one Agent chatbot platform that integrates with mainstream instant messaging apps. It provides reliable and scalable conversational AI infrastructure for individuals, developers, and teams. Whether you're building a personal AI companion, intelligent customer service, automation assistant, or enterprise knowledge base, AstrBot enables you to quickly build production ready AI applications within your IM platform workflows. Key Features 1. 💯 Free & Open Source. 2. ✨ AI…
read the full AstrBot 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 AstrBot or assistant-ui more popular?
AstrBot has 45,879 GitHub stars and assistant-ui has 12,936. AstrBot has the larger community by that measure.
Are AstrBot and assistant-ui free?
Both are open source. AstrBot is licensed under AGPL-3.0 and assistant-ui under MIT. Neither carries a licence fee.
What is the difference between AstrBot and assistant-ui?
AstrBot is written in Python 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, AstrBot or assistant-ui?
Choose AstrBot if you want the larger community (45,879 stars) or its AGPL-3.0 licence terms. Choose assistant-ui if its feature set, stack or MIT licence fits better. Both are self-hostable.