Jan: An Open-Source, Offline ChatGPT Alternative for Local AI

Jan: An Open-Source, Offline ChatGPT Alternative for Local AI

Summary

Jan is a powerful open-source application offering a 100% offline alternative to ChatGPT, running directly on your computer. It enables users to download and execute various large language models (LLMs) locally, ensuring full control and enhanced privacy. This versatile tool also supports custom AI assistants and integration with cloud models.

Repository Info

Updated on March 23, 2026
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Tags

chatgptllmopen-sourceself-hostedtauriTypeScriptAIDesktop App

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Introduction

Jan is an innovative open-source project that brings the power of large language models (LLMs) to your desktop, offering a robust alternative to cloud-based AI solutions like ChatGPT. Designed for privacy and control, Jan allows you to run LLMs entirely offline on your own machine. This ensures that your data remains private and you have complete command over your AI interactions.

Installation

Getting started with Jan is straightforward, with dedicated installers available for various operating systems. You can download the application directly from the official website or GitHub Releases.

Download Options:

For more details or to explore building from source, refer to the official documentation.

Examples

Jan offers a rich set of features for both local and integrated AI experiences:

  • Run Local AI Models: Download and execute various LLMs, such as Llama, Gemma, Qwen, and GPT-oss, directly from HuggingFace on your computer.
  • Cloud Integration: Connect to popular cloud AI services, including GPT models via OpenAI, Claude models via Anthropic, Mistral, Groq, and MiniMax.
  • Custom Assistants: Create specialized AI assistants tailored to your specific tasks and workflows.
  • OpenAI-Compatible API: Utilize a local server at localhost:1337 that is compatible with the OpenAI API, allowing other applications to interact with your local AI models.
  • Privacy First: Benefit from the assurance that all operations can run locally, prioritizing your data privacy.

Why Use Jan

Jan stands out as an excellent choice for anyone seeking a private, controllable, and versatile AI solution. Its core strength lies in its ability to run LLMs 100% offline, giving users unparalleled control over their data and interactions. As an open-source project, it fosters transparency and community-driven development. Whether you need a local AI sandbox, a privacy-focused chat alternative, or a platform to experiment with various models, Jan provides a comprehensive and user-friendly environment. The Apache 2.0 license further ensures its accessibility and encourages collaboration.

Links

Explore Jan further through these official resources: