Jan
Open-source "ChatGPT desktop", local-first with a polished UI, 100% usable offline
An open-source "ChatGPT desktop app" that is local-first with a polished interface and works 100% offline.
Run open LLMs on your own machine — no API bills, no data leaving your device.
Key features
- Open-source ChatGPT replacement for downloading and running LLMs locally
- Cloud integration with OpenAI, Anthropic, Mistral, Groq, and MiniMax
- Custom assistants and an OpenAI-compatible API at localhost:1337
- MCP integration for agentic capabilities
- Privacy first: everything runs locally when you want it to
Good for
- Users wanting a private ChatGPT-like app on their own machine
- Developers hitting a local OpenAI-compatible endpoint from apps
Stack & tags
Node.jsRustllmdesktop-applocal-inferenceprivacyopenai-compatiblemcpchat
Quick start
git clone https://github.com/janhq/jan
cd jan
make devFrom the project README on GitHub.