head to head · open source
Langchain-Chatchat vs errbot
Langchain-Chatchat has 38,643 GitHub stars, 6,266 forks, 26 open issues and last shipped 10 months ago. errbot has 3,306 stars, 624 forks, 45 open issues and last shipped 1 months ago. Langchain-Chatchat leads on adoption by 1,069% (38,643 vs 3,306 stars). Langchain-Chatchat is written in Python under Apache-2.0; errbot is written in Python under GPL-3.0. Langchain-Chatchat has attracted 16% as many forks as stars, errbot 19%. errbot 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
| Langchain-Chatchat | errbot | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 3.3K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2025-11-10 | 2026-08-17 |
| Forks | ⑂ 6.3K | ⑂ 624 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Langchain-Chatchat if
- You weight community size — 39K stars and counting
- You want the Apache-2.0 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 Langchain-Chatchat
Langchain Chatchat (formerly Langchain ChatGLM) is an open source RAG and Agent application built on the Langchain framework and designed to run against local large language models such as ChatGLM, Qwen, and Llama. It lives in the Python ecosystem, is distributed under the Apache 2.0 license, and is published on PyPI as langchain chatchat . The project targets Chinese language scenarios and open source models specifically, with the stated goal of providing a knowledge base question answering solution that can run entirely offline.
read the full Langchain-Chatchat 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 Langchain-Chatchat or errbot more popular?
Langchain-Chatchat has 38,643 GitHub stars and errbot has 3,306. Langchain-Chatchat has the larger community by that measure.
Are Langchain-Chatchat and errbot free?
Both are open source. Langchain-Chatchat is licensed under Apache-2.0 and errbot under GPL-3.0. Neither carries a licence fee.
What is the difference between Langchain-Chatchat and errbot?
Langchain-Chatchat 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, Langchain-Chatchat or errbot?
Choose Langchain-Chatchat if you want the larger community (38,643 stars) or its Apache-2.0 licence terms. Choose errbot if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.