Jan is a free, open-source desktop app that works as a privacy-focused alternative to LLMs like ChatGPT, letting you run AI models directly on your own computer instead of routing everything through a company’s servers. You can either download open-source models to run fully offline or connect your own API keys for services like ChatGPT, Claude, Gemini, DeepSeek and others, giving you the flexibility to switch between local and cloud-based models depending on what task you’re doing. Jan is available to download for Windows, Mac, and Linux.
