8 self-hosted options
Open-source alternatives to ChatGPT
The best open-source alternatives to ChatGPT are Open-WebUI, LibreChat and LobeHub.
About ChatGPT: OpenAI's conversational AI assistant.
Every option below is free to self-host and ranked by GitHub stars, so you can move off ChatGPT without giving up the features you rely on.
Top picks
- Rank 1:
Open-WebUI
open-webui/open-webui
User-friendly AI Interface, supports Ollama, OpenAI API.
AI & LLM ToolsPythonDocker - Rank 2:
LibreChat
LibreChat-AI/LibreChat
Enhanced ChatGPT-compatible AI chat interface supporting multiple AI providers, with multi-user auth, message search, and plugin support.
AI & LLM ToolsTypeScriptDocker - Rank 3:
LobeHub
lobehub/lobehub
Modern design AI chat framework supporting multiple AI providers, one click install MCP Marketplace and Artifacts / Thinking.
AI & LLM ToolsTypeScriptDocker
Why switch
Why teams move off ChatGPT
Self-hosting is not only about saving money. These are the reasons people make the switch.
Own your data
Your data lives on a server you control, not on ChatGPT's infrastructure. No surprise policy changes and no lock-in.
No per-seat pricing
Open-source alternatives to ChatGPT are free to run for as many users as your server can handle. A small VPS often costs less than a single subscription.
Customize and extend
Read the code, add plugins, connect it to your own tools and automate it through open APIs. When you need a feature, you can build it or fund it.
Full ranking
All 8 ChatGPT alternatives
Ranked by GitHub stars. Open any app for live stats, license details and a deploy option.
- 1
Open-WebUI
User-friendly AI Interface, supports Ollama, OpenAI API.
AI & LLM ToolsDocker - 2
LibreChat
Enhanced ChatGPT-compatible AI chat interface supporting multiple AI providers, with multi-user auth, message search, and plugin support.
AI & LLM ToolsDocker - 3
LobeHub
Modern design AI chat framework supporting multiple AI providers, one click install MCP Marketplace and Artifacts / Thinking.
AI & LLM ToolsDocker - 4
AnythingLLM
All-in-one desktop & Docker AI application with built-in RAG, AI agents, No-code agent builder, MCP compatibility, and more.
AI & LLM ToolsDocker - 5
Ollama
Get up and running with Llama 3.3, DeepSeek-R1, Phi-4, Gemma 3, and other large language models.
AI & LLM ToolsDocker - 6
LocalAI
Run your AI models locally and generate images and audio (alternative to OpenAI and Claude).
AI & LLM ToolsDocker - 7
Khoj
Your AI second brain. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI.
AI & LLM ToolsDocker - 8
Dify.ai
Build, test and deploy LLM applications.
Low-code & BackendDocker
What is the best open-source alternative to ChatGPT?
Open-WebUI is the most popular open-source alternative to ChatGPT, with 154,037 GitHub stars. LibreChat and LobeHub are also strong choices. Compare features, license and recent activity to find the best fit for your team.
Is there a free alternative to ChatGPT?
Yes. All 8 apps on this page are open source and free to self-host, so you can run a ChatGPT replacement without per-user fees. You only pay for the server, and a small VPS is usually enough for personal use or a small team.
Can I self-host an alternative to ChatGPT?
Yes. Open-WebUI, LibreChat and LobeHub ship a Docker image, so you can run them on a home server or VPS with Docker Compose in a few minutes. Your data then stays on hardware you control.
How do I migrate from ChatGPT?
Start by exporting your data from ChatGPT, then check the import options of the app you pick, since many projects ship importers for popular formats. Run both side by side for a week before you switch so nothing is lost.