Jan

Jan is an open-source desktop application that runs large language models locally on your machine without cloud dependencies. It functions as a private alternative to web-based chat interfaces, enabling users to deploy and interact with models like Llama, Mistral, and others directly on their hardware. Developers, privacy-conscious professionals, and researchers use Jan to maintain data sovereignty while experimenting with different model architectures.

Jan is completely free with no paid tiers. The application includes full access to model management, local inference capabilities, and the ability to import and run compatible open-source models at no cost. Users only incur expenses if they choose premium models or require additional computational infrastructure beyond their existing hardware.