How to Use Open WebUI in 2026: Step-by-Step Guide
Self-hosted web interface for running local LLMs with Ollama and OpenAI-compatible APIs.
Open WebUI (formerly Ollama WebUI) is a feature-rich, self-hosted web interface for interacting with large language models. It integrates natively with Ollama and supports any OpenAI-compatible API, making it a flexible frontend for local and cloud AI models alike. Features include multi-modal chat, conversation history, model management, role-based access control, and a plugin/extension system. Open WebUI is designed for teams and individuals who want a polished chat experience on top of their self-hosted or locally-run LLM infrastructure. It is free, open-source, and actively maintained with a large contributor community.
What You'll Need
- A Open WebUI account (free to create)
- A modern web browser or the Open WebUI app
Getting Started
Create Your Account
Visit https://openwebui.com and sign up for a free account. You'll need an email address to register.
Start Your First Conversation
Once logged in, you'll see the main chat interface. Type a question or task in the input box and press Enter. Open WebUI supports self-hosted, Ollama integration, multi-model, open-source, extensions, RAG, team access — start with a simple text prompt to get familiar.
Pro Tips
- Be specific: The more context you provide, the better the response. Instead of "write an email," try "write a professional follow-up email to a client who hasn't responded in two weeks."
- Iterate: If you don't get what you need, ask for clarification or refinement: "Make it shorter" or "Use a more formal tone."
- Use examples: Show Open WebUI what format you want by including an example in your prompt.
- Save useful conversations: Most platforms let you name and revisit conversations — organize by project or topic.
Common Use Cases
General Assistant
All-purpose AI assistants for everyday questions, tasks, and conversations.
Browse General Assistant chatbots →Programming & Code
AI assistants focused on writing, debugging, and explaining code across programming languages.
Browse Programming & Code chatbots →Troubleshooting
- Responses seem generic or unhelpful
- Add more context to your prompt. Specify the audience, tone, length, and format you need. Try starting over with a clearer description of your goal.
- The tool isn't responding or is slow
- AI chatbots can experience high traffic. Refresh the page and try again. Check the service's status page if issues persist.
- Output is too long or too short
- Explicitly specify the length: "in 100 words," "as a brief summary," or "in detail with examples."
Get Weekly Chatbot Tips
Not sure which AI tool is right for you? Our newsletter covers reviews, tutorials, and comparisons weekly.
Frequently Asked Questions
- Is Open WebUI free to use?
- Yes, Open WebUI is completely free to use.
- Do I need an account to use Open WebUI?
- You may be able to try Open WebUI without an account, though a free account unlocks more features and saves your history.
- What can I use Open WebUI for?
- Self-hosted web interface for running local LLMs with Ollama and OpenAI-compatible APIs.
Related Guides
Know a tool we're missing? Submit it free →