What it does OpenUI turns text descriptions into rendered UI components you can iterate on conversationally. Describe a dashboard, ask for tweaks, then export the result to React, Svelte, Web Components, or plain HTML. It’s built by Weights & Biases as a playground for LLM-powered application tooling.

The interesting bit The project doesn’t lock you into one model provider. It auto-wires LiteLLM from your environment variables, so OpenAI, Anthropic, Gemini, Groq, Mistral, Cohere, local Ollama, or any OpenAI-compatible endpoint all show up in a dropdown. The README even notes Docker Compose with Ollama is “likely going to be very slow” — a rare honest disclaimer.

Key highlights

• Supports ~10 LLM providers via LiteLLM, plus custom proxy configs
• One-click Docker deployment with forwarded API keys
• Dev container, Gitpod, and GitHub Codespace configs for zero-local-install hacking
• Exports to multiple frontend frameworks, not just HTML
• Live demo at openui.fly.dev if you want to test before cloning

Caveats

• The authors explicitly call it “not as polished” as v0.dev
• Docker Compose + Ollama without GPU is warned as “very slow”
• Frontend changes in Docker require docker-compose build to reflect

Verdict Grab this if you want a hackable, self-hosted alternative to v0.dev and don’t mind rough edges. Skip it if you need production-ready components or a polished SaaS experience.