head to head · open source
Open WebUI vs open-spaces
Open WebUI has 154,042 GitHub stars, 22,541 forks, 294 open issues and last shipped yesterday. open-spaces has 3,394 stars, 496 forks, 0 open issues and last shipped yesterday. Open WebUI leads on adoption by 4,439% (154,042 vs 3,394 stars). Open WebUI is written in Python under a custom or non-standard licence; open-spaces is written in JavaScript under MIT. Open WebUI has attracted 15% as many forks as stars, open-spaces 15%. Open WebUI 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 | open-spaces | |
|---|---|---|
| GitHub stars | ★ 154K | ★ 3.4K |
| License | Custom / other | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-10-08 | 2026-10-08 |
| Forks | ⑂ 23K | ⑂ 496 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Open WebUI if
- You weight community size — 154K 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 open-spaces if
- You want the open-spaces feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and open-spaces 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 open-spaces
OpenSpaces is a free, MIT licensed, self hostable AI workspace that brings shared Spaces, editable pages, conversations, and AI tools into one application, aimed at individuals and teams who want an open alternative to ChatGPT Spaces running on their own infrastructure.
read the full open-spaces overview →
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Frequently asked questions
Is Open WebUI or open-spaces more popular?
Open WebUI has 154,042 GitHub stars and open-spaces has 3,394. Open WebUI has the larger community by that measure.
Are Open WebUI and open-spaces free?
Both are open source. Open WebUI has no licence declared in this registry, and open-spaces is licensed under MIT. Both are free to self-host.
What is the difference between Open WebUI and open-spaces?
Open WebUI is written in Python and open-spaces in JavaScript. 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 open-spaces?
Choose Open WebUI if you want the larger community (154,042 stars) or its Custom / other licence terms. Choose open-spaces if its feature set, stack or MIT licence fits better. Both are self-hostable.