Open-source ChatGPT alternatives

8 self-hostable options to consider

Replace ChatGPT with an open-source tool you can host and control. Compare features, licenses, and community activity below.

Quick answer

The best open-source ChatGPT alternatives are Ollama, Open WebUI, Lobe Chat, AnythingLLM, and Jan. All 8 are free, open source, and self-hostable — compare their features, licenses, and GitHub activity below.

8 tools

Ollama

Alternative to ChatGPT, Claude

Run open LLMs locally with a single command.

Open SourceMIT175K

Open WebUI

Alternative to ChatGPT, Claude

A polished, self-hosted chat UI for any LLM.

Open SourceMIT98K

Lobe Chat

Alternative to ChatGPT, Claude

A beautiful, extensible AI chat framework.

Open SourceSource Available56K

AnythingLLM

Alternative to OpenAI Assistants, ChatGPT

All-in-one desktop & docker AI app with agents.

Open SourceMIT32K

Jan

Alternative to ChatGPT, GitHub Copilot

An offline AI assistant that runs on your device.

Open SourceAGPL 3.030K

LibreChat

Alternative to ChatGPT, Claude

Every AI provider in one open chat hub.

Open SourceMIT24K

OpenClaw

Alternative to ChatGPT

A private personal AI assistant that lives in your chat apps.

Open SourceMIT21.4K

Khoj

Alternative to ChatGPT, Perplexity

Your second brain, powered by AI.

Open SourceAGPL 3.018K

Open-source ChatGPT alternatives

Command Palette