head to head · open source
Open WebUI vs rikkahub
Open WebUI has 157,575 GitHub stars, 22,923 forks, 294 open issues and last shipped yesterday. rikkahub has 8,606 stars, 847 forks, 282 open issues and last shipped yesterday. Open WebUI leads on adoption by 1,731% (157,575 vs 8,606 stars). Open WebUI is written in Python under a custom or non-standard licence; rikkahub is written in Kotlin under AGPL-3.0. Open WebUI has attracted 15% as many forks as stars, rikkahub 10%. 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 (llm-ui, mcp), 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 | rikkahub | |
|---|---|---|
| GitHub stars | ★ 158K | ★ 8.6K |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | Kotlin |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 23K | ⑂ 847 |
| 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 rikkahub if
- You want the rikkahub feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Kotlin
- You evaluated both and rikkahub 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 rikkahub
RikkaHub A native Android LLM chat client that supports switching between different providers for conversations 🤖💬 Click to join our Discord server 👉 【RikkaHub】 简体中文 繁體中文 English 🚀 Download 🔗 Download from Website (Recommended) 🔗 Download from Google Play [!WARNING] There are many forked versions of RikkaHub. Issues with forks are unrelated to RikkaHub, so please use forks with caution to avoid privacy leaks or excessive permission requests. 💖 Sponsors ✨ Features 🎨 Material You Design and 🌙 Dark mode 📦 Workspace: a proot based Linux agent environment 🔄 Multiple AI Provider Support: custom API / URL /…
read the full rikkahub overview →
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Frequently asked questions
Is Open WebUI or rikkahub more popular?
Open WebUI has 157,575 GitHub stars and rikkahub has 8,606. Open WebUI has the larger community by that measure.
Are Open WebUI and rikkahub free?
Both are open source. Open WebUI has no licence declared in this registry, and rikkahub is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Open WebUI and rikkahub?
Open WebUI is written in Python and rikkahub in Kotlin. 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 rikkahub?
Choose Open WebUI if you want the larger community (157,575 stars) or its Custom / other licence terms. Choose rikkahub if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.