jan
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
Jan is a fully open-source desktop assistant that wraps local models in a clean ChatGPT-style UI, with a built-in model hub and an optional local API server.
From the README
git clone https://github.com/janhq/jan cd jan make dev
- Local AI Models: Download and run LLMs (Llama, Gemma, Qwen, GPT-oss etc.) from HuggingFace
- Cloud Integration: Connect to GPT models via OpenAI, Claude models via Anthropic, Mistral, Groq, MiniMax, and others
- Custom Assistants: Create specialized AI assistants for your tasks
Excerpts from the project README on GitHub. Copyright and licensing remain with the respective authors.
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jan has 44.3k stars on GitHub. It has been forked 3k times. jan is written mainly in TypeScript. It has been in active development since 2023. Its main topics are chatgpt, gpt, llamacpp, llm.
Read the full guideWhat is jan?
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
Is jan open source?
jan is an open-source project.
Is jan free?
Yes. jan is free and open source — you can use, modify and self-host it.
What language is jan written in?
jan is written mainly in TypeScript.
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