Open WebUI Review - Features, Pricing & Alternatives (2026)

Open WebUI

Self-hosted AI platform with a ChatGPT-style interface for local and cloud LLMs

AI Chatbots & Agents AI & Machine Learning www.openwebui.com

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Founded

N/A

Starting Price

Free

About Open WebUI

Open WebUI is an extensible, self-hosted AI platform that provides a polished ChatGPT-style interface for interacting with local and cloud-based large language models. It supports Ollama and any OpenAI-compatible API, and can operate entirely offline. With 45k+ GitHub stars, it offers multi-user support, conversation history, document uploads with RAG, image generation, web browsing within chats, voice and video calls, a model builder, native Python function calling, and a growing plugin ecosystem. Open WebUI is fully free and open-source, with optional enterprise licenses for compliance, white labeling, and dedicated support.

Pros & Cons

Pros

Completely free and open-source with no restrictions or hidden limits
Works entirely offline — full data privacy and sovereignty
Supports virtually any LLM through Ollama and OpenAI-compatible APIs
Massive community (45k+ GitHub stars) with rapid development and updates
Enterprise-ready with compliance support (SOC 2, HIPAA, GDPR)

Key Features

Multi-LLM Support

Connect to Ollama, OpenAI, and any OpenAI-compatible API — run local models or cloud providers from one interface

RAG Integration

Upload documents to create Knowledge Collections and augment LLM responses with custom data using Retrieval Augmented Generation

Web Browsing

Browse the web directly within chats to pull in real-time information for AI responses

Voice & Video Calls

Hands-free voice and video call features with multiple Speech-to-Text and Text-to-Speech engine support

Model Builder

Create custom Ollama models, characters, and agents directly through the web interface

Plugin System

Extensible architecture with native Python function calling, built-in code editor, and community plugins

Multi-User Management

Full authentication system with role-based access, conversation history, and per-user settings

Pricing

Community