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Open WebUI

Open WebUI

Open source#4 in AI Platforms

The self-hosted ChatGPT-style interface for local and private models: a polished chat UI over Ollama, OpenAI-compatible APIs or any backend — with RAG, multi-user management and tool calling built in.

Product preview

openwebui.com
Preview of Open WebUI

Overview

Open WebUI is what you install after Ollama: a Docker command later, your local models have a polished ChatGPT-grade interface — chat history, markdown, code highlighting, voice, document RAG, and multi-user accounts with roles. For families, labs and companies keeping AI in-house, it turns a model server into a product.

It is deliberately backend-agnostic: point it at Ollama, OpenAI-compatible endpoints, or both simultaneously and switch models mid-conversation. The tool/function system lets non-developers add web search or custom logic per model. The trade is that it is UI plumbing, not model quality — garbage model in, garbage chat out — and rapid releases occasionally break plugins. As the standard face of self-hosted AI, its position is close to unchallenged.

Pros / Cons

Pros

  • One Docker command to a full ChatGPT alternative
  • Any backend: Ollama, OpenAI-compatible, both
  • Multi-user with roles — real org deployment
  • RAG, tools and voice built in

Cons

  • UI quality, not model quality — garbage in, garbage out
  • Rapid releases occasionally break extensions
  • Self-hosting means updates are your job

Who it's for

01

Family or lab-wide private ChatGPT

02

Company-internal AI on your own servers

03

Frontend for Ollama/vLLM model servers

04

Air-gapped deployments

Bottom line

The standard face of self-hosted AI — one container between your models and a real product.

Key Features

ChatGPT-like UI for any backend
Ollama integration first-class
Built-in RAG with document upload
Multi-user, roles & SSO
Tools, functions & model builder

Tags

Self-hostedOpen sourceChat UI

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Frequently asked questions

What is Open WebUI?

Open WebUI is a AI Platforms tool developed by Open WebUI. The company was founded in 2023 and is headquartered in Open source (community). The self-hosted ChatGPT-style interface for local and private models: a polished chat UI over Ollama, OpenAI-compatible APIs or any backend — with RAG, multi-user management and tool calling built in.

Is Open WebUI free?

Yes — Open WebUI is free to use.

Is Open WebUI open source?

Yes — Open WebUI is open source. The source code is publicly available at https://github.com/open-webui/open-webui.

What are the best alternatives to Open WebUI?

Notable AI Platforms alternatives include Hugging Face, Replicate, Ollama. Browse all 4 tools in our AI Platforms category for a full overview.

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Basic Info

Pricing
Free
Rating
4.7 (3,900 reviews) Ratings explained
Platforms
Self-hostedDocker
Founded
2023
Headquarters
Open source (community)
Last verified
2026-09-08