Open WebUI

Open-source alternative to ChatGPT interface

Open WebUI is a self-hosted chat interface for working with large language models, making it an open-source alternative to the ChatGPT interface. It connects to different model providers, including local models through Ollama, and lets you chat with your own documents. Teams and individuals who want private, model-agnostic AI chat on their own machines use it to keep their conversations in-house.

Best for: Anyone who wants a private, self-hosted chat interface for AI models instead of a cloud service.

Key features

  • Self-hosted LLM chat interface
  • Works with multiple model providers
  • Supports Ollama and document chat

Before you switch

AI tools evolve fast, and open-source models and interfaces are catching up quickly. When you switch, check whether the project supports the models you already use and whether it can run on your own hardware or a server you control. Self-hosted AI keeps your prompts and data private, but it may need a little setup. Start with the project’s documentation and community guides — most popular projects have step-by-step install instructions that take under an hour.

Like every project on OpenShelf, Open WebUI is developed in the open — you can read the code, follow development, and even contribute. Check the system requirements and the project’s own documentation linked on this page before installing.