head to head · open source
Open WebUI vs AionUi
Open WebUI has 157,575 GitHub stars, 22,923 forks, 294 open issues and last shipped yesterday. AionUi has 33,996 stars, 3,550 forks, 905 open issues and last shipped 11 days ago. Open WebUI leads on adoption by 364% (157,575 vs 33,996 stars). Open WebUI is written in Python under a custom or non-standard licence; AionUi is written in TypeScript under Apache-2.0. Open WebUI has attracted 15% as many forks as stars, AionUi 10%. 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 (ai), 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 | AionUi | |
|---|---|---|
| GitHub stars | ★ 158K | ★ 34K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-10-23 |
| Forks | ⑂ 23K | ⑂ 3.5K |
| 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 AionUi if
- You want the AionUi feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and AionUi 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 AionUi
A free, open source, Cowork app with AI Agents Built in Agent Zero Setup Any API Key Multi Agents Remote Access Cross Platform 24/7 Automation English 简体中文 繁體中文 日本語 한국어 Español Português Türkçe Русский Українська Official Website 💬 Community: Discord (English) 微信 (中文群) Twitter 🎁 AionUi × Kimi Partnership : Free premium Kimi "Allegretto" plans ($39/mo · ¥199/mo value) for our contributors! View Campaign Details & How to Claim → Kimi K3 is here and works out of the box in AionUi — get a Kimi For Coding plan or an API key ( Global / China ) · ready to claim? comment here 📋 Quick Navigation Cowork in Action · Why…
read the full AionUi overview →
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Frequently asked questions
Is Open WebUI or AionUi more popular?
Open WebUI has 157,575 GitHub stars and AionUi has 33,996. Open WebUI has the larger community by that measure.
Are Open WebUI and AionUi free?
Both are open source. Open WebUI has no licence declared in this registry, and AionUi is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Open WebUI and AionUi?
Open WebUI is written in Python and AionUi in TypeScript. 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 AionUi?
Choose Open WebUI if you want the larger community (157,575 stars) or its Custom / other licence terms. Choose AionUi if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.