head to head · open source
AstrBot vs ChatUI
AstrBot has 45,879 GitHub stars, 3,368 forks, 1,516 open issues and last shipped 2 days ago. ChatUI has 4,463 stars, 426 forks, 53 open issues and last shipped 24 days ago. AstrBot leads on adoption by 928% (45,879 vs 4,463 stars). AstrBot is written in Python under AGPL-3.0; ChatUI is written in TypeScript under MIT. AstrBot has attracted 7% as many forks as stars, ChatUI 10%. AstrBot 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 | ChatUI | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 4.5K |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-03 | 2026-10-12 |
| Forks | ⑂ 3.4K | ⑂ 426 |
| 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 ChatUI if
- You want the ChatUI feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and ChatUI 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 ChatUI
The UI design language and React library for Conversational UI Website： English 简体中文 Features 😎 Best Practices : The best practice for chat interaction based on our experience of Alime Chatbot 🛡 TypeScript : Written in TypeScript with predictable static types 📱 Responsive : Responsive design to adapt automatically to whatever device ♿ Accessibility : Accessibility support and get the certification from Accessibility Research Association 🎨 Theming : Powerful theme customization in every detail 🌍 International : Internationalization support for dozens of languages Environment Support Modern browsers (support…
read the full ChatUI overview →
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Frequently asked questions
Is AstrBot or ChatUI more popular?
AstrBot has 45,879 GitHub stars and ChatUI has 4,463. AstrBot has the larger community by that measure.
Are AstrBot and ChatUI free?
Both are open source. AstrBot is licensed under AGPL-3.0 and ChatUI under MIT. Neither carries a licence fee.
What is the difference between AstrBot and ChatUI?
AstrBot is written in Python and ChatUI 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 ChatUI?
Choose AstrBot if you want the larger community (45,879 stars) or its AGPL-3.0 licence terms. Choose ChatUI if its feature set, stack or MIT licence fits better. Both are self-hostable.