Jan

What it is

Jan is an open-source desktop app for local chat and model experimentation, useful when ownership and local-first positioning matter as much as beginner polish.

When to use it

• You want a desktop app but prefer an open-source project.
• You care about local-first defaults and ownership language.
• You are comparing app trust and workflow shape, not just raw model speed.

Setup path

Install app → choose model → chat

1. Install Jan for your OS.
2. Pick a starter model that fits your machine.
3. Run one private chat workflow and compare friction against LM Studio or Ollama.

Local & privacy implications

• The local-first promise still depends on model source, settings, and integrations.
• Model downloads are external network actions.
• Open source helps inspection, but it does not remove the need for configuration review.

Sources, freshness & fit boundary

This is a practical starting point for the role above, not a universal compatibility verdict. Source links were last reviewed on April 25, 2026; verify current OS, model-format, licensing, network, and deployment requirements in the official documentation before committing a workflow.

Alternatives

Other software rows worth opening before you settle on this path.