head to head · open source
Open WebUI vs quivr
Open WebUI has 153,975 GitHub stars, 22,505 forks, 294 open issues and last shipped today. quivr has 39,579 stars, 3,740 forks, 9 open issues and last shipped today. Open WebUI leads on adoption by 289% (153,975 vs 39,579 stars). Open WebUI is written in Python under a custom or non-standard licence; quivr is written in Go under MIT. Open WebUI has attracted 15% as many forks as stars, quivr 9%. Open WebUI was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai, llm), 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
| Open WebUI | quivr | |
|---|---|---|
| GitHub stars | ★ 154K | ★ 40K |
| License | Custom / other | MIT |
| Written in | Python | Go |
| Last push | 2026-10-05 | 2026-10-05 |
| Forks | ⑂ 23K | ⑂ 3.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Open WebUI if
- You weight community size — 154K 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 quivr if
- You want the quivr feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and quivr fits your workflow better
About Open WebUI
Open WebUI is a self hosted, open source AI interface that unifies access to local and cloud based large language models. It runs entirely in a web browser and supports Ollama for local model hosting alongside any OpenAI compatible API, including services like LMStudio, GroqCloud, Mistral, and OpenRouter. Built in Python, it functions as a drop in replacement for proprietary AI platforms, giving users full control over their model infrastructure and data.
read the full Open WebUI overview →
About quivr
Quivr V2 is an open source Go engine that ingests continuous content streams durably, makes them searchable within seconds, and tracks a topic over time through alerts — built for developers who want search and monitoring over their own content without forking a platform.
read the full quivr overview →
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Frequently asked questions
Is Open WebUI or quivr more popular?
Open WebUI has 153,975 GitHub stars and quivr has 39,579. Open WebUI has the larger community by that measure.
Are Open WebUI and quivr free?
Both are open source. Open WebUI has no licence declared in this registry, and quivr is licensed under MIT. Both are free to self-host.
What is the difference between Open WebUI and quivr?
Open WebUI is written in Python and quivr in Go. 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 quivr?
Choose Open WebUI if you want the larger community (153,975 stars) or its Custom / other licence terms. Choose quivr if its feature set, stack or MIT licence fits better. Both are self-hostable.