head to head · open source
Open WebUI vs Corpus
Open WebUI has 157,498 GitHub stars, 22,901 forks, 294 open issues and last shipped yesterday. Corpus has 13 stars, 0 forks, 25 open issues and last shipped 6 days ago. Open WebUI leads on adoption by 1,211,423% (157,498 vs 13 stars). Open WebUI is written in Python under a custom or non-standard licence; Corpus is written in Python under AGPL-3.0. Open WebUI has attracted 15% as many forks as stars, Corpus 0%. 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 | Corpus | |
|---|---|---|
| GitHub stars | ★ 157K | ★ 13 |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-10-28 |
| Forks | ⑂ 23K | ⑂ 0 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Open WebUI if
- You weight community size — 157K 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 Corpus if
- You want the Corpus feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and Corpus 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 Corpus
Corpus Document Q&A powered by AI. Upload documents, ask questions, get answers with citations. Demo For higher quality demos, see assets/demo large.gif. Video Walkthroughs See demos for video tutorials: Getting Started Upload documents and ask questions Cross Correlation Compare answers across documents Workflow Creation Create automated workflows Workflow Output View and export results What it does Upload PDFs and web pages Ask questions in natural language Get answers with citations linking back to source text Organize documents into workspaces and document sets Local Development Prerequisites Docker & Docker…
read the full Corpus overview →
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Frequently asked questions
Is Open WebUI or Corpus more popular?
Open WebUI has 157,498 GitHub stars and Corpus has 13. Open WebUI has the larger community by that measure.
Are Open WebUI and Corpus free?
Both are open source. Open WebUI has no licence declared in this registry, and Corpus is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Open WebUI and Corpus?
Open WebUI is written in Python and Corpus 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 Corpus?
Choose Open WebUI if you want the larger community (157,498 stars) or its Custom / other licence terms. Choose Corpus if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.