Desktop AI Application
42.2k 2026-04-26
janhq/jan
Jan is an open-source, privacy-focused desktop application that allows users to run large language models (LLMs) locally and offline, serving as a powerful alternative to cloud-based AI services like ChatGPT.
Core Features
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
OpenAI-Compatible API: Local server at `localhost:1337` for other applications
Privacy First: Everything runs locally when you want it to
Quick Start
git clone https://github.com/janhq/jan && cd jan && make devDetailed Introduction
Jan is a robust open-source desktop application designed to bring the power of large language models (LLMs) directly to your computer, ensuring complete privacy and control. It functions as a local alternative to cloud-based AI services like ChatGPT, allowing users to download and run various LLMs offline. Beyond local execution, Jan also offers seamless integration with popular cloud AI providers and enables the creation of custom AI assistants, all while providing an OpenAI-compatible API for broader application development.