head to head · open source
Open WebUI vs LLamaSharp
Open WebUI has 157,575 GitHub stars, 22,923 forks, 294 open issues and last shipped yesterday. LLamaSharp has 3,825 stars, 517 forks, 22 open issues and last shipped 2 days ago. Open WebUI leads on adoption by 4,020% (157,575 vs 3,825 stars). Open WebUI is written in Python under a custom or non-standard licence; LLamaSharp is written in C# under MIT. Open WebUI has attracted 15% as many forks as stars, LLamaSharp 14%. Open WebUI was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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 | LLamaSharp | |
|---|---|---|
| GitHub stars | ★ 158K | ★ 3.8K |
| License | Custom / other | MIT |
| Written in | Python | C# |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 23K | ⑂ 517 |
| 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 LLamaSharp if
- You want the LLamaSharp feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and LLamaSharp 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 LLamaSharp
LLamaSharp is a cross platform library to run 🦙LLaMA model (and others) on your local device. Based on llama.cpp, inference with LLamaSharp is efficient on both CPU and GPU. With the higher level APIs and RAG support, it's convenient to deploy LLMs (Large Language Models) in your application with LLamaSharp. Please star the repo to show your support for this project!🤗 Table of Contents Documentation Console Demo Integrations & Examples Get started FAQ Contributing Join the community Star history Contributor wall of fame Map of LLamaSharp and llama.cpp versions 📖Documentation Quick start Ask AI via deep wiki…
read the full LLamaSharp overview →
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Frequently asked questions
Is Open WebUI or LLamaSharp more popular?
Open WebUI has 157,575 GitHub stars and LLamaSharp has 3,825. Open WebUI has the larger community by that measure.
Are Open WebUI and LLamaSharp free?
Both are open source. Open WebUI has no licence declared in this registry, and LLamaSharp is licensed under MIT. Both are free to self-host.
What is the difference between Open WebUI and LLamaSharp?
Open WebUI is written in Python and LLamaSharp in C#. 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 LLamaSharp?
Choose Open WebUI if you want the larger community (157,575 stars) or its Custom / other licence terms. Choose LLamaSharp if its feature set, stack or MIT licence fits better. Both are self-hostable.