Local AIProductivity

Jan

Jan is free and open-source. No subscription required. Check official pricing →

At a Glance

Jan is a clean, free, and fully open-source desktop app for running AI models locally. It’s a strong choice for users who care about privacy, prefer fully open-source software, and want a simple interface without subscriptions or cloud connectivity.

What Jan Is Best For

  • Private AI: everything runs locally; nothing is sent to external servers
  • Fully offline use: works completely without an internet connection
  • Open-source users: fully auditable code with no proprietary components
  • Everyday AI assistance: writing, answering questions, and analysis using local models

Getting Started

  1. Download Jan from jan.ai
  2. Open the app and browse the model hub
  3. Download a model (Llama, Mistral, Gemma, etc.)
  4. Start chatting immediately, fully offline

Jan also runs a local API server compatible with the OpenAI API format, so developers can connect other tools to it.

Honest Limitations

  • Hardware-limited quality: local models are less capable than premium cloud AI
  • Large model downloads: model files take significant disk space and download time
  • Smaller community than LM Studio: fewer tutorials and community resources

Alternatives Worth Knowing

  • LM Studio, similar; slightly more polished GUI; not fully open-source
  • Ollama, command-line focused; better for developers
  • Open WebUI, browser-based interface; good for multi-user setups

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Frequently Asked Questions

What is Jan best for?

Jan is best for people who want to run AI privately on their own computer, no cloud, no account, no subscription. It's a clean desktop app that downloads and runs AI models locally with a focus on simplicity and privacy.

How is Jan different from LM Studio?

Both Jan and LM Studio are desktop apps for running local AI models. Jan is fully open-source with a strong privacy and offline focus. LM Studio has some proprietary components but is slightly more polished. Both are good choices depending on your preference.

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