Jan

Jan is an open-source AI chat application designed to run entirely on your own computer, without sending data to external servers. It functions as a privacy-focused alternative to ChatGPT, letting you download and run large language models locally on desktop or mobile devices. You can use models like Llama3, Gemma3, and Mistral, or connect to cloud-based services through API keys if you prefer. The tool includes built-in features for handling complex tasks over multiple steps, understanding different types of content like text and images, and automating workflows. Because everything runs on your device, your conversations and data stay under your control. Jan is particularly useful for people who need AI capabilities but want to keep sensitive information private, or who work in environments where data cannot leave the organisation.