head to head · open source
nanobot vs AGenUI
nanobot has 48,372 GitHub stars, 8,548 forks, 775 open issues and last shipped today. AGenUI has 1,154 stars, 167 forks, 7 open issues and last shipped 3 days ago. nanobot leads on adoption by 4,092% (48,372 vs 1,154 stars). nanobot is written in Python under MIT; AGenUI is written in C++ under Apache-2.0. nanobot has attracted 18% as many forks as stars, AGenUI 14%. nanobot was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), 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 | AGenUI | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 1.2K |
| License | MIT | Apache-2.0 |
| Written in | Python | C++ |
| Last push | 2026-09-20 | 2026-09-17 |
| Forks | ⑂ 8.5K | ⑂ 167 |
| 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 AGenUI if
- You want the AGenUI feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and AGenUI 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 AGenUI
AGenUI is a native SDK for rendering generative user interfaces on mobile devices across iOS, Android, and HarmonyOS. It is built on, and fully implements, the A2UI v0.9 protocol open sourced by Google, and it sits in the AI interaction and interface layer of the ecosystem: the LLM produces structured component descriptions, which AGenUI receives as streaming data and turns into live native UI. Under the hood, a shared C++ core engine dispatches the component protocol, while three separate platform rendering engines draw the result using each operating system's own UI capabilities. The project is licensed under A…
read the full AGenUI overview →
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Frequently asked questions
Is nanobot or AGenUI more popular?
nanobot has 48,372 GitHub stars and AGenUI has 1,154. nanobot has the larger community by that measure.
Are nanobot and AGenUI free?
Both are open source. nanobot is licensed under MIT and AGenUI under Apache-2.0. Neither carries a licence fee.
What is the difference between nanobot and AGenUI?
nanobot is written in Python and AGenUI in C++. 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 AGenUI?
Choose nanobot if you want the larger community (48,372 stars) or its MIT licence terms. Choose AGenUI if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.