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Jan.ai

Open-source, offline-first desktop AI assistant with a beautiful native UI.

Jan is a desktop AI application focused on running models entirely on-device. It features a native macOS and Windows UI, a built-in model hub for one-click downloads, an OpenAI-compatible local API server, and extension support. Everything runs locally — no internet required after download.

Open SourceOfflineDesktopPrivacy

Published Feb 10, 2026

Visual coming soon

Use Cases

  • Offline-first AI chat: works on planes, in air-gapped environments
  • Local OpenAI-compatible API server for developer integrations
  • One-click model download from HuggingFace and built-in hub
  • Privacy-sensitive workloads where no data can leave the device

Specifications

PlatformmacOS (Apple Silicon + Intel), Windows, Linux
Enginellama.cpp, TensorRT-LLM (NVIDIA)
APIOpenAI-compatible local REST server
LicenseApache 2.0 open source

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