Chat With AI Privately in Your Browser — No Server, No Data Sharing
Run a real LLM (Llama 3.2 or Phi-3.5) entirely in your browser using WebGPU. Your conversations never touch any server. Works offline after first load.
ChatGPT, Claude, Gemini — all of them send your messages to cloud servers. That means every question you ask, every document you paste, every personal detail you share goes through a remote data center. For sensitive use cases, that's a problem. There's an alternative: AI that runs entirely on your own hardware, in your browser.
Browser AI Chat: How It Works
Our Browser AI Chat uses WebLLM — a framework that runs large language models directly in your browser via WebGPU. The AI model (Llama 3.2 or Phi-3.5 Mini) downloads once, is cached locally, and all inference runs on your GPU. After the model loads, no internet connection is needed at all.
Getting Started
- Open Browser AI Chat.
- Click "Load Model" and choose your model:
- Llama 3.2 1B: Fast, lightweight (~0.7 GB download). Good for simple tasks.
- Phi-3.5 Mini: Smarter, better reasoning (~2.4 GB download). Better for complex questions.
- Wait for the one-time model download — it's cached for all future sessions.
- Start chatting. Your messages never leave your device.
System Requirements
- Browser: Chrome 113+ or Edge 113+ (WebGPU support required)
- GPU: Modern integrated or dedicated GPU (2+ GB GPU memory for Llama, 4+ GB for Phi)
- RAM: 8 GB+ system RAM recommended
- Firefox and Safari do not yet have full WebGPU support
When to Use On-Device AI
- Asking questions about confidential business documents
- Processing personal or medical information you prefer to keep private
- Working in environments with restricted internet access
- Offline use: once the model is cached, no connection is needed