head to head · open source
AstrBot vs errbot
AstrBot has 40,717 GitHub stars, 2,941 forks, 1,516 open issues and last shipped today. errbot has 3,306 stars, 624 forks, 45 open issues and last shipped 1 months ago. AstrBot leads on adoption by 1,132% (40,717 vs 3,306 stars). AstrBot is written in Python under AGPL-3.0; errbot is written in Python under GPL-3.0. AstrBot has attracted 7% as many forks as stars, errbot 19%. 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 | errbot | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 3.3K |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-09-20 | 2026-08-17 |
| Forks | ⑂ 2.9K | ⑂ 624 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick AstrBot if
- You weight community size — 41K 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 errbot if
- You want the errbot feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and errbot fits your workflow better
About AstrBot
AstrBot is an open source all in one Agent chatbot platform written in Python and licensed under AGPL 3.0. It integrates with mainstream instant messaging applications and provides conversational AI infrastructure for individuals, developers, and teams. The project lives in the AI and machine learning ecosystem, specifically the AI interaction and interfaces category, and it has been developed over roughly four years. Its repository carries 40,504 stars and 2,915 forks, and its documented homepage is astrbot.app. Topics attached to the project include agent, ai, chatbot, chatgpt, discord, docker, gemini, gpt, lla…
read the full AstrBot overview →
About errbot
Errbot is a chatbot daemon written in Python and released under the GPL 3.0 licence that connects to a chat service and lets people start scripts, plugins and operational tasks directly from the conversation, aimed at developers and operations teams who want ChatOps inside the chat tools they already use.
read the full errbot overview →
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Frequently asked questions
Is AstrBot or errbot more popular?
AstrBot has 40,717 GitHub stars and errbot has 3,306. AstrBot has the larger community by that measure.
Are AstrBot and errbot free?
Both are open source. AstrBot is licensed under AGPL-3.0 and errbot under GPL-3.0. Neither carries a licence fee.
What is the difference between AstrBot and errbot?
AstrBot is written in Python and errbot 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, AstrBot or errbot?
Choose AstrBot if you want the larger community (40,717 stars) or its AGPL-3.0 licence terms. Choose errbot if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.