head to head · open source
ComfyUI vs AstrBot
ComfyUI has 144,658 GitHub stars, 17,237 forks, 4,894 open issues and last shipped yesterday. AstrBot has 45,662 stars, 3,350 forks, 1,516 open issues and last shipped yesterday. ComfyUI leads on adoption by 217% (144,658 vs 45,662 stars). ComfyUI is written in Python under GPL-3.0; AstrBot is written in Python under AGPL-3.0. ComfyUI has attracted 12% as many forks as stars, AstrBot 7%. ComfyUI was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai), 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
| ComfyUI | AstrBot | |
|---|---|---|
| GitHub stars | ★ 145K | ★ 46K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 17K | ⑂ 3.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ComfyUI if
- You weight community size — 145K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick AstrBot if
- You want the AstrBot feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and AstrBot fits your workflow better
About ComfyUI
ComfyUI The most powerful and modular AI engine for content creation. [![Website][website shield]][website url] [![Dynamic JSON Badge][discord shield]][discord url] [![Twitter][twitter shield]][twitter url] [![Matrix][matrix shield]][matrix url] [![][github release shield]][github release link] [![][github release date shield]][github release link] [![][github downloads shield]][github downloads link] [![][github downloads latest shield]][github downloads link] [matrix shield]: [matrix url]: [website shield]: [website url]: [discord shield]: [discord url]: [twitter shield]: [twitter url]: [github release…
read the full ComfyUI overview →
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 →
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Frequently asked questions
Is ComfyUI or AstrBot more popular?
ComfyUI has 144,658 GitHub stars and AstrBot has 45,662. ComfyUI has the larger community by that measure.
Are ComfyUI and AstrBot free?
Both are open source. ComfyUI is licensed under GPL-3.0 and AstrBot under AGPL-3.0. Neither carries a licence fee.
What is the difference between ComfyUI and AstrBot?
ComfyUI is written in Python and AstrBot in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ComfyUI or AstrBot?
Choose ComfyUI if you want the larger community (144,658 stars) or its GPL-3.0 licence terms. Choose AstrBot if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.