head to head · open source
Open WebUI vs AGenUI
Open WebUI has 157,575 GitHub stars, 22,923 forks, 294 open issues and last shipped yesterday. AGenUI has 1,220 stars, 174 forks, 7 open issues and last shipped yesterday. Open WebUI leads on adoption by 12,816% (157,575 vs 1,220 stars). Open WebUI is written in Python under a custom or non-standard licence; AGenUI is written in C++ under Apache-2.0. Open WebUI has attracted 15% as many forks as stars, AGenUI 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-ui), 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 | AGenUI | |
|---|---|---|
| GitHub stars | ★ 158K | ★ 1.2K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | C++ |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 23K | ⑂ 174 |
| 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 AGenUI if
- You want the AGenUI feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and AGenUI 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 AGenUI
AGenUI AGenUI is a high performance A2UI SDK for building native generative UI experiences across iOS, Android, and HarmonyOS. Official Website · Quick Start · API Reference · Contributing English 中文 This project is under active development and evolving rapidly. Contributions, feedback, and discussions are warmly welcome. What's New in v1.5.0 Released on 2026 09 04 (iOS) Runtime Configuration API : Added AGenUI.setRuntimeConfig( :) , which accepts a JSON string of runtime switches from the host so behavior can be toggled remotely. Call it once during SDK initialization, before any surface renders. (iOS) Physical…
read the full AGenUI overview →
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Frequently asked questions
Is Open WebUI or AGenUI more popular?
Open WebUI has 157,575 GitHub stars and AGenUI has 1,220. Open WebUI has the larger community by that measure.
Are Open WebUI and AGenUI free?
Both are open source. Open WebUI has no licence declared in this registry, and AGenUI is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Open WebUI and AGenUI?
Open WebUI is written in Python and AGenUI 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 AGenUI?
Choose Open WebUI if you want the larger community (157,575 stars) or its Custom / other licence terms. Choose AGenUI if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.