head to head · open source
Open WebUI vs errbot
Open WebUI has 157,575 GitHub stars, 22,923 forks, 294 open issues and last shipped yesterday. errbot has 3,310 stars, 628 forks, 45 open issues and last shipped 8 days ago. Open WebUI leads on adoption by 4,661% (157,575 vs 3,310 stars). Open WebUI is written in Python under a custom or non-standard licence; errbot is written in Python under GPL-3.0. Open WebUI has attracted 15% as many forks as stars, errbot 19%. Open WebUI was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Open WebUI | errbot | |
|---|---|---|
| GitHub stars | ★ 158K | ★ 3.3K |
| License | Custom / other | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-10-26 |
| Forks | ⑂ 23K | ⑂ 628 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Open WebUI if
- You weight community size — 158K stars and counting
- You want the Custom / other 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 Open WebUI
Open WebUI 👋 Open WebUI is a home for AI , a self hosted AI platform that's extensible , feature rich , user friendly, and built to run entirely offline . With support for Ollama and OpenAI compatible APIs , it gives you a powerful, provider agnostic interface for both local and cloud based models. Passionate about open source AI? Join our team → [!TIP] Looking for an Enterprise Plan? – Speak with Our Sales Team Today! For more information, be sure to check out our Open WebUI Documentation. Key Features of Open WebUI ⭐ 🚀 Effortless Setup : Install seamlessly via pip, uv, Docker, or Kubernetes (kubectl…
read the full Open WebUI overview →
About errbot
.. image:: :target: .. image:: :target: .. image:: :target: :alt: Latest Version .. image:: :target: :alt: License .. image:: :target: :alt: Join the chat at Errbot ====== Errbot is a chatbot. It allows you to start scripts interactively from your chatrooms for any reason: random humour, chatops, starting a build, monitoring commits, triggering alerts... It is written and easily extensible in Python. Errbot is available as open source software and released under the GPL v3 license. Features Chat servers support Built in IRC support Telegram support XMPP support With add ons Slack support (See instructions )…
read the full errbot overview →
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Frequently asked questions
Is Open WebUI or errbot more popular?
Open WebUI has 157,575 GitHub stars and errbot has 3,310. Open WebUI has the larger community by that measure.
Are Open WebUI and errbot free?
Both are open source. Open WebUI has no licence declared in this registry, and errbot is licensed under GPL-3.0. Both are free to self-host.
What is the difference between Open WebUI and errbot?
Open WebUI 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, Open WebUI or errbot?
Choose Open WebUI if you want the larger community (157,575 stars) or its Custom / other licence terms. Choose errbot if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.