head to head · open source
Open WebUI vs odysseus
Open WebUI has 157,575 GitHub stars, 22,923 forks, 294 open issues and last shipped yesterday. odysseus has 94,935 stars, 1,862 forks, 1,233 open issues and last shipped yesterday. Open WebUI leads on adoption by 66% (157,575 vs 94,935 stars). Open WebUI is written in Python under a custom or non-standard licence; odysseus is written in Python under AGPL-3.0. Open WebUI has attracted 15% as many forks as stars, odysseus 2%. odysseus 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 | odysseus | |
|---|---|---|
| GitHub stars | ★ 158K | ★ 95K |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 23K | ⑂ 1.9K |
| 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 odysseus if
- You want the odysseus 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 odysseus 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 odysseus
A self hosted AI workspace for chat, agents, research, documents, email, notes, calendar, and local model workflows. Quick Start · Setup Guide · Contributing · Roadmap Quick Start dev is the default branch and gets the newest changes first. Use main if you want the more curated branch. Open when the containers are healthy. The first admin password is printed in docker compose logs odysseus . Native installs, GPU notes, Windows/macOS instructions, HTTPS, and configuration live in the setup guide. Features Chat + Agents — local/API models, tools, MCP, files, shell, skills, and memory. Cookbook — hardware aware…
read the full odysseus overview →
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Frequently asked questions
Is Open WebUI or odysseus more popular?
Open WebUI has 157,575 GitHub stars and odysseus has 94,935. Open WebUI has the larger community by that measure.
Are Open WebUI and odysseus free?
Both are open source. Open WebUI has no licence declared in this registry, and odysseus is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Open WebUI and odysseus?
Open WebUI is written in Python and odysseus 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 odysseus?
Choose Open WebUI if you want the larger community (157,575 stars) or its Custom / other licence terms. Choose odysseus if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.