Open WebUI vs Chatbot UI compared for 2026 — features, license, ease of use, performance and which one to choose. ChatGPT-style interface over any model vs Clean open ChatGPT clone with files and profiles.
Updated regularly · curated by OpenSourceAI.tech
| Spec | Open WebUI | Chatbot UI |
|---|---|---|
| Category | Self-hosted chat UI | Self-hosted chat UI |
| Type | Self-hosted web UI | Web chat UI |
| License | BSD-3-Clause | MIT |
| Runs locally | Self-hosted | Yes |
| Primary language | Svelte | TypeScript |
| Ease of use | Intermediate | Intermediate |
| Best for | teams that want a shared web UI over local models | teams wanting a familiar ChatGPT feel they control |
| GitHub stars | 144.4k | — |
| Feature | Open WebUI | Chatbot UI |
|---|---|---|
| Self-hostable | ✓ | ✓ |
| Document RAG | ✓ | ✓ |
| Multi-user | ✓ | ✓ |
| Plugins / tools | ✓ | ✗ |
| Voice (STT/TTS) | ✓ | ✗ |
| Mobile / PWA | ✓ | ✗ |
| Criterion | Open WebUI | Chatbot UI |
|---|---|---|
| Popularity | 5.0 | n/a |
| Maintenance | 5.0 | n/a |
| Ease of use | 3.5 | 3.5 |
| Privacy | 4.5 | 5.0 |
| License freedom | 5.0 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
Open WebUI is a self-hosted, ChatGPT-style web interface that runs on top of Ollama or any OpenAI-compatible API, with chat history, model switching and document RAG.
Chatbot UI is a polished open-source chat interface supporting multiple providers, file uploads and per-user workspaces, backed by Supabase for auth and storage.
Open WebUI is self-hosted web UI, while Chatbot UI is web chat UI. Their licenses differ (BSD-3-Clause vs MIT), which matters if you ship a commercial product. They also differ in how they run (Self-hosted vs Yes). In short, Open WebUI fits teams that want a shared web UI over local models, and Chatbot UI fits teams wanting a familiar ChatGPT feel they control.
Choose Open WebUI for teams that want a shared web UI over local models. Choose Chatbot UI for teams wanting a familiar ChatGPT feel they control.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Both sit at a similar level (Intermediate). Your choice should come down to fit rather than difficulty.
Open WebUI is free and open source (BSD-3-Clause), and Chatbot UI is free and open source (MIT). Neither charges for the core software.
Open WebUI: self-hosted · Chatbot UI: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
Choose Open WebUI for teams that want a shared web UI over local models. Choose Chatbot UI for teams wanting a familiar ChatGPT feel they control.
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