unsubbed.co
Categories / ai-assistants

Open WebUI

Feature-rich self-hosted AI interface for Ollama and OpenAI-compatible APIs with RAG support

MIT Open WebUI GitHub stars Open WebUI latest release Open WebUI last commit Website ↗

Overview

Open WebUI (formerly Ollama WebUI) is the most popular self-hosted AI chat interface, with 55K+ GitHub stars. Originally built as a frontend for Ollama, it has evolved into a full-featured AI platform with RAG, model management, tool use, and multi-user support.

The UI is genuinely beautiful — arguably the most polished interface in the self-hosted AI space. Upload documents for RAG, manage and switch between local models, create custom presets, and share conversations — all from a clean, responsive interface.

Key Features

  • Ollama Integration — Manage, download, and switch local models from UI
  • RAG — Upload documents and chat with them using embeddings
  • OpenAI Compatible — Works with any OpenAI API-compatible endpoint
  • Model Builder — Create and share custom model presets
  • Multi-User — User management with role-based access
  • Tools & Functions — Extensible with custom Python functions

Pricing: Self-Hosted vs ChatGPT Team

Users ChatGPT Team Open WebUI (self-hosted) Savings
1 user (local) $20/mo (ChatGPT) $0 (local GPU) $20/mo
5 users $100/mo (ChatGPT Team) $20/mo (GPU VPS) $80/mo
20 users $400/mo (ChatGPT Team) $40/mo (GPU VPS) $360/mo
50 users $1,000/mo (ChatGPT Team) $80/mo (GPU VPS) $920/mo

Pros

  • + 55K+ GitHub stars — fastest growing AI interface
  • + Built-in RAG — upload documents and chat with them
  • + Works with Ollama (local models) and any OpenAI API
  • + Beautiful, polished UI rivaling ChatGPT
  • + Model management — download and switch models from UI

Cons

  • - Primarily designed for Ollama — cloud API support is secondary
  • - RAG quality depends on embedding model choice
  • - Some features only work with local Ollama setup
  • - Fast development pace means UI changes frequently

Deployment Options for Open WebUI

🐳

Docker

Self-host with Docker Compose

🚀

Coolify

One-click via Coolify panel

☁️

Elestio

Managed hosting from $9/mo

🫛

PikaPods

Simple managed hosting

Frequently Asked Questions

Open WebUI vs AnythingLLM?
Open WebUI for the best local Ollama experience with model management. AnythingLLM for workspace-based RAG with more cloud API options. Both are excellent — choose based on whether you prioritize local models or cloud APIs.
Do I need a GPU?
For local models via Ollama, a GPU (NVIDIA recommended) dramatically improves speed. Small models (7B) run on CPU but slowly. If using cloud APIs only, no GPU needed.
Can I use it with OpenAI/Claude?
Yes. Configure any OpenAI-compatible API endpoint. Direct Anthropic (Claude) support requires an adapter or proxy.
How does RAG work?
Upload PDFs, text files, or web pages. Open WebUI chunks and embeds them, then uses retrieved context to augment LLM responses. Quality depends on the embedding model and chunk size settings.

Our Verdict

Open WebUI (formerly Ollama WebUI) is the most popular self-hosted AI chat interface, with 55K+ GitHub stars. Originally built as a frontend for Ollama, it has evolved into a full-featured AI platform...

Best for: Teams running local LLMs via Ollama who want the best self-hosted chat interface