Self-Hosted AI Chatbot in 2026: AnythingLLM (64k Stars) vs Open WebUI vs chat-ui - Private ChatGPT on Your Server

AnythingLLM (64,364 stars), Open WebUI (147,900) and Hugging Face chat-ui (10,866) are the top self-hosted ChatGPT alternatives - private, free, and you control the data and the model.

💡 What You Will Learn

AnythingLLM (64,364 stars), Open WebUI (147,900) and Hugging Face chat-ui (10,866) are the top self-hosted ChatGPT alternatives - private, free, and you control the data and the model.

## The short answer Self-hosting a ChatGPT alternative means running a chat frontend + a model on your own hardware. **AnythingLLM** (64,364 stars, MIT) is the easiest all-in-one with document workspaces; **Open WebUI** (147,900 stars) is the most feature-rich (RAG, web search, multi-user); **chat-ui** (10,866 stars, Apache-2.0) is Hugging Face's minimal codebase that powers HuggingChat. ## Fastest setup - AnythingLLM ```bash git clone https://github.com/Mintplex-Labs/anything-llm.git cd anything-llm; docker compose up -d ``` 1. Open http://localhost:3001, create an account. 2. In settings, choose Ollama (177,825 stars) as the LLM provider, pick a model. 3. Create a workspace, upload docs, chat - it works immediately. ## Open WebUI for more power ```bash docker run -d -p 3000:8080 -v open-webui:/app/backend/data -e OLLAMA_BASE_URL=http://host.docker.internal:11434 --name open-webui --restart always ghcr.io/open-webui/open-webui:main ``` Adds: web search, image generation, multi-user roles, and a plugin marketplace. ## Comparison | Feature | AnythingLLM | Open WebUI | chat-ui | |:--------|:-----------:|:----------:|:-------:| | Easiest setup | Yes | Good | Developer | | Document RAG | Built-in | Built-in | Via code | | Multi-user | Yes | Yes | Basic | | Web search | No | Yes | No | | Stars | 64,364 | 147,900 | 10,866 | ## Real numbers - All three run on a 16GB machine with an 8B local model (qwen2.5:7b, llama3.1:8b). - AnythingLLM supports 10+ vector databases and local embedding by default. - Self-hosted means no message caps, no data leaving your server - unlike paid ChatGPT plans. ## FAQ **Q: Which should I start with?** A: AnythingLLM - one docker compose, browser UI, docs RAG included. **Q: Can I expose it publicly?** A: Yes, behind nginx with HTTPS and auth - but keep Ollama bound to localhost and add rate limiting. **Q: What about team access?** A: Open WebUI has the best multi-user and permission model for teams.