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Open source
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4.4/5

Jan

Open-source desktop ChatGPT alternative. Privacy-first, runs offline, supports Hugging Face import.

By Fredoline Eruo·Last verified May 6, 2026·30,000 GitHub stars

Overview

Open-source desktop ChatGPT alternative. Privacy-first, runs offline, supports Hugging Face import.

Pros

  • Open source LM Studio alternative
  • Cross-platform
  • Active community

Cons

  • Some rough edges in 2026 vs LM Studio

Compatibility

Operating systems
macOS
Linux
Windows
GPU backends
NVIDIA CUDA
Apple Metal
CPU
LicenseOpen source · free

Get Jan

Official site
https://jan.ai
GitHub
https://github.com/menloresearch/jan

Frequently asked

Is Jan free?

Yes — Jan is free to download and use and open-source under a permissive license.

What operating systems does Jan support?

Jan supports macOS, Linux, Windows.

Which GPUs work with Jan?

Jan supports NVIDIA CUDA, Apple Metal, CPU. CPU-only inference is also possible but slow.

Reviewed by RunLocalAI Editorial. See our editorial policy for how we evaluate tools.