head to head · open source
nanobot vs AionUi
nanobot has 48,372 GitHub stars, 8,548 forks, 775 open issues and last shipped today. AionUi has 32,965 stars, 3,410 forks, 905 open issues and last shipped 11 days ago. nanobot leads on adoption by 47% (48,372 vs 32,965 stars). nanobot is written in Python under MIT; AionUi is written in TypeScript under Apache-2.0. nanobot has attracted 18% as many forks as stars, AionUi 10%. nanobot was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agent, 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
| nanobot | AionUi | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 33K |
| License | MIT | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-20 | 2026-09-09 |
| Forks | ⑂ 8.5K | ⑂ 3.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nanobot if
- You weight community size — 48K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick AionUi if
- You want the AionUi feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and AionUi fits your workflow better
About nanobot
nanobot is an ultra lightweight, open source, self hosted personal AI agent framework written in Python, aimed at individual developers and small teams who want to run their own agent through a browser WebUI, a terminal, or chat apps instead of renting a hosted assistant.
read the full nanobot overview →
About AionUi
AionUi is an open source, cross platform Cowork application that puts AI agents to work alongside the user on their own computer. It is written in TypeScript and released under the Apache 2.0 license, and it lives in the AI agent and chat tooling ecosystem alongside the command line agents it is built to host. Rather than acting as a plain chat client, it runs a built in agent engine that can read and write files, search the web, generate images, and call Model Context Protocol tools, while showing the user every action the agent takes and keeping approval in the user's hands.
read the full AionUi overview →
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Frequently asked questions
Is nanobot or AionUi more popular?
nanobot has 48,372 GitHub stars and AionUi has 32,965. nanobot has the larger community by that measure.
Are nanobot and AionUi free?
Both are open source. nanobot is licensed under MIT and AionUi under Apache-2.0. Neither carries a licence fee.
What is the difference between nanobot and AionUi?
nanobot is written in Python and AionUi 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, nanobot or AionUi?
Choose nanobot if you want the larger community (48,372 stars) or its MIT licence terms. Choose AionUi if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.