Ollama
Run LLMs on your own computer with a single command — no GPU required for smaller models
Fully offline AI assistant desktop app — your data never leaves your computer
Jan is the privacy-first AI assistant that actually delivers on its promise. Everything runs offline — no cloud APIs, no data collection, no subscription model. Your conversations never leave your machine, which matters enormously if you work with sensitive information or simply don't want Big Tech reading your thoughts. The interface is deliberately simple and clean, designed for daily use rather than tinkering. Jan supports both local models through its built-in engine and remote providers, giving you flexibility. What makes Jan stand out is its commitment to the offline-first philosophy — even the model downloads happen through a built-in store, so you never need to touch a terminal. The trade-off is that the model selection is more limited than Ollama's, and the interface is intentionally minimal rather than feature-rich. For privacy-conscious users, that's exactly the right trade.
Good first choice if you want a practical tool without spending the afternoon reading developer docs.
Use AI for personal tasks without any data leaving your device — ideal for sensitive industries
Run AI on flights, trains, or anywhere without reliable internet
Jan is a good candidate for individuals, non developers who want an open source option in the ai & llm tools category. The key question is not whether the repository is popular. The better question is whether it removes a real friction point from your day: replacing a paid SaaS tool, keeping more data under your control, speeding up a repeated task, or giving a team a workflow they can inspect and adapt.
Jan is most useful when your goal matches one of its real use cases rather than when you are simply browsing popular repositories. Start by checking whether "private ai usage" sounds like your situation. If it does, read the install guide, try the smallest possible setup, and only then decide whether to bring it into a personal workflow or team stack. The project is tagged around ai, llm, desktop, offline, which gives you a quick sense of the ecosystem it belongs to. It can also fit "offline ai access", but that second path may require a different setup or expectation.
Jan is one of the easier projects in this category to try first. You should still check the official installation page, but the expected path is closer to downloading an app, running a simple command, or following a guided setup than maintaining a complex server.
Check the AGPL-3.0 license, the TypeScript ecosystem, and the latest activity on GitHub before using it for important work.
Skip it for now if your current tool already solves the same problem well. Open source is most valuable when it gives you privacy, flexibility, cost savings, or a workflow improvement you cannot get from your existing setup.
If you are unsure, compare it with the similar projects below before spending time on a full setup.