Best Self-Hosted AI Chat in 2026

Conversational AI assistants and chatbot tools for answering questions, generating content, and automating tasks.

The top-rated pick is Ollama with 166,322 GitHub stars.

3 self-hosted ai chat — ranked by GitHub stars. Browse all

Ollama

Get up and running with Llama 3.3, DeepSeek-R1, Phi-4, Gemma 3, Mistral Small 3.1 and other large language models.

Alternative to:

ChatGPT

Open WebUI

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

Alternative to:

ChatGPT

Lobe Chat

🤯 Lobe Chat - an open-source, modern design AI chat framework. Supports multiple AI providers (OpenAI / Claude 4 / Gemini / DeepSeek / Ollama / Qwen), Knowledge Base (file upload / RAG ), one click install MCP Marketplace and Artifacts / Thinking. One-click FREE deployment of your private AI Agent application.

Alternative to:

ChatGPT

Why self-host?

Self-hosting puts you in control. You own your data, avoid vendor lock-in, and eliminate recurring subscription costs. For teams handling sensitive data or operating under strict compliance requirements, running your own infrastructure is often the only viable option.

Want to compare all open source options including cloud-hosted ones? See the best open source ai chat →