Jan.ai
verifiedFreejan.ai
Open-source desktop app for running AI chat models locally or via APIs, as a private ChatGPT alternative.
What it does
Jan is a free, open-source desktop application that acts as a private ChatGPT alternative. It runs open large language models locally on your device and can also connect to online models like GPT, Claude and Gemini, keeping your data on your own machine.
How to use: Download Jan for your operating system (Windows, Mac, or Linux) and run it offline on your computer. Utilize the OpenAI-equivalent API server at localhost:1337 for compatible apps.
Core features
Run open-source LLMs locally
Connect to online models (OpenAI, Claude, Gemini)
Private, offline-capable AI chat
Open source and self-hostable
Model library via Hugging Face
Cross-platform desktop app
Best for
→Private local AI chat
→Using multiple models in one app
→Avoiding cloud data sharing
→Experimenting with open models
Toolspool rankingby monthly traffic
Reviews
Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.
Tutorials
Step-by-step: exactly how to get things done with it.