Jan

Open-source, offline ChatGPT-style desktop app
Run LLMs locallyDesktop app (open source)AGPL-3.0Runs locallyTypeScriptBeginner
🛡 Published security advisories
A high count usually means the project is heavily examined. A low count usually means it is little examined — not that it is safe.
No public activity signals for this tool — it has no open repository we can measure.
Olud Pulse ⓘ ★★★★★★★★★★ /100 signals tracked
🐳 Docker pulls 📦 PyPI downloads / month 📦 npm downloads / month 🚀 Latest release ·
Visit website →View on GitHub

What is Jan?

Jan is a fully open-source desktop assistant that wraps local models in a clean ChatGPT-style UI, with a built-in model hub and an optional local API server.

Why people choose Jan

Jan at a glance

CategoryRun LLMs locally
TypeDesktop app (open source)
LicenseAGPL-3.0
Runs locallyYes
Built withTypeScript
Skill levelBeginner
Best forusers who want an open-source LM Studio alternative

Open-source alternatives to Jan

Other open-source run llms locally tools worth comparing:

OllamaRun open LLMs locally from one commandLM StudioBrowse, download and chat with local modelsGPT4AllPrivate local AI that runs on CPUllama.cppThe C/C++ engine powering local inferenceLocalAIA drop-in OpenAI API you self-hostText Generation WebUIFeature-rich web UI for local modelsKoboldCppSingle-file local model runnerMLC LLMRun LLMs on any device, even phonesllamafileOne executable file = model + runtimeexoRun big models across your everyday devicesCortexOllama-style runtime from the Jan teamNexa SDKRun any model on any device — CPU, GPU, NPURamaLamaRun models as OCI containersGPUStackManage GPU clusters for running models

Jan head-to-head

Jan vs OllamaJan vs LM StudioJan vs GPT4AllJan vs llama.cppJan vs LocalAIJan vs Text Generation WebUIJan vs KoboldCppJan vs MLC LLMJan vs llamafileJan vs exoJan vs CortexJan vs Nexa SDKJan vs RamaLamaJan vs GPUStack

FAQ

Is Jan free?

Jan is free and open-source (AGPL-3.0 license), so you can use, self-host and modify it at no cost.

Can I run Jan locally?

Yes. Jan is designed to run on your own machine or server, keeping your data private.

What is the best alternative to Jan?

Popular open-source alternatives include Ollama, LM Studio, GPT4All. See the comparisons above to choose.

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