head to head · open source
nanobot vs BotSharp
nanobot has 49,806 GitHub stars, 8,711 forks, 775 open issues and last shipped yesterday. BotSharp has 3,116 stars, 658 forks, 48 open issues and last shipped yesterday. nanobot leads on adoption by 1,498% (49,806 vs 3,116 stars). nanobot is written in Python under MIT; BotSharp is written in C# under Apache-2.0. nanobot has attracted 17% as many forks as stars, BotSharp 21%. nanobot was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (ai-agent, chatbot, multi-agent), 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.
← all 20902 open source comparisons
Side by side
| nanobot | BotSharp | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 3.1K |
| License | MIT | Apache-2.0 |
| Written in | Python | C# |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 8.7K | ⑂ 658 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nanobot if
- You weight community size — 50K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick BotSharp if
- You want the BotSharp 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 BotSharp fits your workflow better
About nanobot
English 简体中文 繁體中文 Español Français Bahasa Indonesia 日本語 한국어 Русский Tiếng Việt Discord · X · WeChat / Feishu nanobot 🐈 nanobot is an ultra lightweight, open source, self hosted personal AI agent framework written in Python. It runs in a WebUI, terminal, or chat apps and combines tools, long term memory, MCP integrations, model routing, multi agent delegation, scheduled automation, and an OpenAI compatible API in a small, readable core. Start Here What can nanobot do? nanobot is a self hosted personal AI agent runtime. It can: run in a browser WebUI or terminal connect to Telegram, Discord, Slack, WeChat, Email…
read the full nanobot overview →
About BotSharp
The Open Source AI Agent Application Framework Connect LLMs to your existing application focused on your business "Conversation as a platform (CaaP) is the future, so it's perfect that we're already offering the whole toolkits to our .NET developers using the BotSharp AI BOT Platform Builder to build a CaaP. It opens up as much learning power as possible for your own robots and precisely control every step of the AI processing pipeline." BotSharp is an open source machine learning framework for AI Bot platform builder. This project involves natural language understanding, computer vision and audio processing…
read the full BotSharp overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is nanobot or BotSharp more popular?
nanobot has 49,806 GitHub stars and BotSharp has 3,116. nanobot has the larger community by that measure.
Are nanobot and BotSharp free?
Both are open source. nanobot is licensed under MIT and BotSharp under Apache-2.0. Neither carries a licence fee.
What is the difference between nanobot and BotSharp?
nanobot is written in Python and BotSharp 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 BotSharp?
Choose nanobot if you want the larger community (49,806 stars) or its MIT licence terms. Choose BotSharp if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.