# Open WebUI — Self-Hosted ChatGPT Alternative

> Feature-rich open-source web UI for running local and remote LLMs. Open WebUI supports Ollama, OpenAI, Claude API with RAG, tools, multi-user, and mobile-friendly interface.

## Install

Save as a script file and run:

## Quick Use

```bash
# Docker (with Ollama)
docker run -d -p 3000:8080 \
  --add-host=host.docker.internal:host-gateway \
  -v open-webui:/app/backend/data \
  --name open-webui \
  ghcr.io/open-webui/open-webui:main

# Opens at http://localhost:3000
```

```bash
# Or pip install
pip install open-webui
open-webui serve
```

## What is Open WebUI?

Open WebUI is a self-hosted, feature-rich web interface for LLMs. It provides a ChatGPT-like experience that works with local models (Ollama), cloud APIs (OpenAI, Claude), or any OpenAI-compatible endpoint. Key differentiators: built-in RAG, tool/function calling, multi-user with roles, model playground, and a mobile-responsive design. Everything runs on your infrastructure.

**Answer-Ready**: Open WebUI is a self-hosted ChatGPT alternative with Ollama, OpenAI, and Claude support. Built-in RAG, tools, multi-user roles, model playground, and mobile UI. Full privacy on your infrastructure. Most popular open-source LLM frontend. 60k+ GitHub stars.

**Best for**: Teams wanting a private, multi-user LLM interface. **Works with**: Ollama (local), OpenAI, Anthropic Claude, any OpenAI-compatible API. **Setup time**: Under 2 minutes.

## Core Features

### 1. Multi-Provider Support

```
# In Settings → Connections:
- Ollama: http://host.docker.internal:11434
- OpenAI: sk-... (GPT-4o, GPT-4o-mini)
- Anthropic: sk-ant-... (Claude Sonnet, Haiku)
- Custom: Any OpenAI-compatible endpoint
```

### 2. Built-in RAG

Upload documents directly in chat:
- PDF, DOCX, TXT, CSV
- Web URLs (auto-scrape)
- Code files
- Automatic chunking and embedding

### 3. Tools & Functions

```python
# Create custom tools in the UI
class Calculator:
    def add(self, a: float, b: float) -> float:
        return a + b

    def multiply(self, a: float, b: float) -> float:
        return a * b
```

### 4. Multi-User with Roles

| Role | Permissions |
|------|------------|
| Admin | Full control, user management |
| User | Chat, upload docs, use tools |
| Pending | Awaiting admin approval |

### 5. Model Playground

Compare models side-by-side:
- Send same prompt to multiple models
- Compare response quality and speed
- Helpful for model selection

### 6. Mobile Responsive

Full-featured mobile interface — chat, upload, switch models from phone or tablet.

## Open WebUI vs Alternatives

| Feature | Open WebUI | LobeChat | Jan | AnythingLLM |
|---------|-----------|---------|-----|-------------|
| Multi-provider | Yes | Yes | Yes | Yes |
| Built-in RAG | Yes | Plugin | Plugin | Yes |
| Multi-user | Yes (roles) | No | No | Yes |
| Tools/Functions | Yes | Yes | Limited | Yes |
| Mobile UI | Yes | Yes | No | Limited |
| Stars | 60k+ | 55k+ | 26k+ | 35k+ |

## FAQ

**Q: Is it truly private?**
A: Yes, everything runs on your server. Use Ollama for fully local inference with zero data leaving your network.

**Q: Can I use Claude with it?**
A: Yes, add your Anthropic API key in Settings → Connections. Claude Sonnet and Haiku are supported.

**Q: How does RAG work?**
A: Upload files in chat or via the Documents page. Open WebUI chunks, embeds, and stores them. They are automatically retrieved during relevant conversations.

## Source & Thanks

> Created by [Open WebUI](https://github.com/open-webui). Licensed under MIT.
>
> [open-webui/open-webui](https://github.com/open-webui/open-webui) — 60k+ stars

<!-- ZH -->

## 快速使用

```bash
docker run -d -p 3000:8080 ghcr.io/open-webui/open-webui:main
```

一行 Docker 启动自托管 ChatGPT 替代品。

## 什么是 Open WebUI？

自托管的 LLM Web 界面，支持 Ollama/OpenAI/Claude，内置 RAG、工具调用、多用户和移动端。

**一句话总结**：最流行开源 LLM 前端，自托管 ChatGPT 体验，Ollama + OpenAI + Claude 多供应商，内置 RAG + 工具 + 多用户，60k+ stars。

**适合人群**：需要私有多用户 LLM 界面的团队。

## 核心功能

### 1. 多供应商
Ollama（本地）、OpenAI、Claude、自定义端点。

### 2. 内置 RAG
上传 PDF/文档，自动分块嵌入检索。

### 3. 多用户
Admin/User 角色，审批制注册。

### 4. 移动端
完整移动界面，手机平板可用。

## 常见问题

**Q: 真正私有？**
A: 是，全部自托管，配合 Ollama 零数据外泄。

**Q: 支持 Claude？**
A: 支持，设置中添加 Anthropic API key。

## 来源与致谢

> [open-webui/open-webui](https://github.com/open-webui/open-webui) — 60k+ stars, MIT

---
Source: https://tokrepo.com/en/workflows/053f9525-915e-4634-b188-78f9cb32c547
Author: Script Depot