head to head · open source
Open WebUI vs manifold
Open WebUI has 152,655 GitHub stars, 22,337 forks, 294 open issues and last shipped yesterday. manifold has 501 stars, 30 forks, 3 open issues and last shipped 12 days ago. Open WebUI leads on adoption by 30,370% (152,655 vs 501 stars). Open WebUI is written in Python under a custom or non-standard licence; manifold is written in Go under MIT. Open WebUI has attracted 15% as many forks as stars, manifold 6%. 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 | manifold | |
|---|---|---|
| GitHub stars | ★ 153K | ★ 501 |
| License | Custom / other | MIT |
| Written in | Python | Go |
| Last push | 2026-09-21 | 2026-09-10 |
| Forks | ⑂ 22K | ⑂ 30 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Open WebUI if
- You weight community size — 153K 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 manifold if
- You want the manifold feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and manifold fits your workflow better
About Open WebUI
Open WebUI is a self hosted, open source AI interface that unifies access to local and cloud based large language models. It runs entirely in a web browser and supports Ollama for local model hosting alongside any OpenAI compatible API, including services like LMStudio, GroqCloud, Mistral, and OpenRouter. Built in Python, it functions as a drop in replacement for proprietary AI platforms, giving users full control over their model infrastructure and data.
read the full Open WebUI overview →
About manifold
Manifold is an experimental, MIT licensed Go platform for long horizon workflow automation that coordinates teams of AI assistants, built for developers and teams who need agent workflows that run over hours instead of single prompts.
read the full manifold overview →
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Frequently asked questions
Is Open WebUI or manifold more popular?
Open WebUI has 152,655 GitHub stars and manifold has 501. Open WebUI has the larger community by that measure.
Are Open WebUI and manifold free?
Both are open source. Open WebUI has no licence declared in this registry, and manifold is licensed under MIT. Both are free to self-host.
What is the difference between Open WebUI and manifold?
Open WebUI is written in Python and manifold in Go. 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 manifold?
Choose Open WebUI if you want the larger community (152,655 stars) or its Custom / other licence terms. Choose manifold if its feature set, stack or MIT licence fits better. Both are self-hostable.