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Open WebUI
VerifiedSelf-hosted, open-source ChatGPT-style interface for local and API-based models.
4.5 (2,900 reviews)
About Open WebUI
Open WebUI is an open-source, self-hosted chat interface designed to feel like ChatGPT while giving you full control over which models power it — local models via Ollama, or hosted models through any OpenAI-compatible API. It supports multiple users with permissions, built-in retrieval-augmented generation for chatting with your own documents, and is commonly paired with Ollama as a self-hosted, private alternative to commercial chat assistants.
Key Features
- Clean, ChatGPT-like chat interface
- Works with Ollama and any OpenAI-compatible API
- Multi-user support with permissions
- Built-in document chat (RAG)
- Fully self-hosted — your data stays on your infrastructure
Best For
- Self-hosted, private alternative to ChatGPT for individuals or teams
- Giving a team a shared chat interface over their own local models
- Chatting with your own documents via built-in RAG
Pros
- Free and open-source
- Full control over data and hosting
- Works with both local and hosted API models
- Actively developed with frequent new features
Cons
- Requires self-hosting setup (Docker recommended)
- No official managed/hosted version
- Feature depth depends on which model you connect it to
