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Ai MlAlternative to ChatGPT DesktopAlternative to Claude DesktopAlternative to LM Studio

Jan

Jan is an open-source alternative to ChatGPT that runs 100% offline on your computer.

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LicenseAGPL-3.0
GitHub stars23.5k
Last commit1 weeks ago
Tags6 topics
Ai MlElectronLocal LlmChatgpt AlternativeOffline AiNitro Engine
Overview

Why consider Jan?

Jan is an open-source desktop application that runs open-source LLMs (Llama 3, Mistral, Phi-3) 100% offline. Built with Nitro (C++ engine) and Electron, it offers customizable local APIs and hardware acceleration.

Guided learning

Learn Jan by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of Jan

Jan runs completely offline with zero telemetry, hosting an OpenAI-compatible local API server at http://localhost:1337.

Installation

bash
1# macOS via Homebrew
2brew install --cask jan
3
4# Windows via Winget
5winget install Jan.Jan

Jan is licensed under the GNU AGPL-3.0 license.

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Jan FAQs

Jan is listed as a Ai Ml tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

Jan is listed under the AGPL-3.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

Jan is listed as an alternative to ChatGPT Desktop. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.