Web LLM

The Web LLM node runs AI models completely in your browser using cutting-edge WebAssembly technology. No external servers, no internet required after initial setup, and complete privacy - your data never leaves your browser.

This is the ultimate in privacy-focused AI processing, perfect for sensitive data or when you need guaranteed offline functionality.

How it works

Web LLM downloads and runs AI models directly in your browser using WebAssembly and WebGPU acceleration. Everything happens locally in your browser tab with no external dependencies.

graph LR
  Browser[Your Browser] --> WASM[WebAssembly]
  WASM --> GPU[WebGPU Acceleration]
  GPU --> Model[AI Model]
  Model --> Response[Instant Response]
  style WASM fill:#6d28d9,stroke:#fff,color:#fff

Setup guide

1. Choose a Model: Select from available browser-compatible AI models.

2. Wait for Download: The model downloads and caches in your browser (one-time process).

3. Start Processing: Once loaded, the AI runs instantly with no network delays.

4. Enjoy Privacy: All processing happens locally - your data never leaves the browser.

Practical example: Ultra-private document analysis

Let’s set up completely private AI processing that works offline.

General Analysis

{
"model": "Llama-2-7b-chat-hf-q4f16_1",
"temperature": 0.3,
"maxTokens": 500
}

Creative Writing

{
"model": "Llama-2-7b-chat-hf-q4f16_1",
"temperature": 0.8,
"maxTokens": 1000
}

Precise Tasks

{
"model": "Llama-2-7b-chat-hf-q4f16_1",
"temperature": 0.1,
"maxTokens": 300
}

Why choose browser AI

Browser AI (Web LLM)	Cloud AI	Local AI (Ollama)
Runs in browser	Requires internet	Requires installation
Ultimate privacy	Data sent externally	Local but needs setup
Works offline	Always online	Works offline
No installation	No installation	Requires software
Instant startup	API delays	Server startup time

Available models

Model	Size	Best For	Performance
Llama-2-7b-chat-hf-q4f16_1	~4GB	General tasks	Good balance
TinyLlama-1.1B-Chat-v0.4-q4f16_1	~700MB	Quick responses	Very fast
Phi-2-q4f16_1	~1.6GB	Reasoning tasks	Fast

Start with TinyLlama for testing

TinyLlama downloads quickly and runs fast, perfect for testing Web LLM functionality before trying larger models.

Browser requirements

Minimum requirements

• Modern browser (Chrome 113+, Firefox 117+, Edge 113+)
• 4GB RAM available to browser
• WebAssembly support (automatic in modern browsers)

Recommended setup

• 8GB+ RAM for larger models
• WebGPU support for acceleration (Chrome/Edge)
• Fast internet for initial model download

Real-world examples

Maximum privacy document processing

Process highly sensitive documents with zero external access:

Use case: Legal documents, medical records, personal data
Benefit: Guaranteed privacy - nothing leaves your browser
Model: Llama-2-7b-chat-hf-q4f16_1 with temperature 0.2

Offline AI assistant

Create AI workflows that work without internet:

Use case: Field work, remote locations, air-gapped systems
Benefit: Complete offline functionality after initial setup
Model: TinyLlama for fast responses, Llama-2 for quality

Educational AI tools

Build AI learning tools with no external dependencies:

Use case: Student projects, classroom environments, demos
Benefit: No API keys, no costs, works anywhere
Model: Phi-2 for reasoning tasks, TinyLlama for speed

Troubleshooting

• Model won’t load: Check available browser memory and try a smaller model like TinyLlama.
• Slow performance: Enable WebGPU in browser settings or try a smaller model.
• Out of memory errors: Close other browser tabs and try a lighter model.
• Download fails: Check internet connection and browser storage permissions.