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Listed in Chatbots & Assistants with 28 other toolsPart of 747+ curated AI tools on AISO
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Jan AI

Open-source offline AI assistant that runs entirely on your local device

★★★★★
4.3(189 reviews)
open-source100% free and open-source. Download models freely (sizes vary: 4GB–70GB+).View full pricing →

Visit Jan AI

https://jan.ai

💰 View Detailed Pricing →Try Jan AI →

About Jan AI

Jan is an open-source, offline AI assistant that runs entirely on your local machine. No data leaves your device — conversations stay private, models run without internet connectivity, and you own everything. Jan supports popular open-source models (Llama, Mistral, Phi, Gemma) via a clean desktop UI that rivals ChatGPT. The best free option for privacy-conscious users.

Key Features

✓Runs 100% offline — no internet required
✓One-click model downloads (Llama 3, Mistral, Phi-3, Gemma)
✓Clean ChatGPT-like UI for conversations
✓Extensions system for API connections
✓Local API server compatible with OpenAI API format
✓Multi-model support — switch models per conversation

Jan AI Pros & Cons

✅ Pros

  • +Complete privacy — zero data sent to external servers
  • +Works without internet — air-gapped environments
  • +Free forever — no subscription or API costs
  • +OpenAI-compatible API for local development

⚠️ Cons

  • −Requires capable hardware (8GB+ RAM minimum, 16GB+ for best results)
  • −Model downloads are large (4GB–70GB per model)
  • −Quality gap vs GPT-4o/Claude on complex reasoning tasks
  • −No built-in web browsing or tool use

Who Is Jan AI Best For?

👤Privacy-conscious users who don't want data shared with AI companies
👤Developers building apps with a local LLM backend
👤Enterprises with strict data-handling requirements
👤Users in offline or air-gapped environments

Tags

local aiopen-sourceprivacyoffline aillamamistralon-device ai
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Alternatives to Jan AI

View all Jan AI alternatives →

LM Studio

Desktop app for running local LLMs — GUI, chat interface, and local OpenAI server

freeCompare Jan AI vs LM Studio →

Ollama

Run LLMs locally with one command — 80K GitHub stars, Mac/Linux/Windows

freeCompare Jan AI vs Ollama →