1
Capture a bounded page view
Read only a bounded representation of the active shopping page after the user starts an analysis.
Experimental Prototype On-Device AI No Backend
Local Price Extractor
Extract product prices from the page you are viewing with Chrome's built-in AI, without sending the page to a backend.
View on GitHubActive shopping page
Chrome on-device AI
{ "title": "Product",
"price": 29900 }
Platform
Chrome Extension
Processing
Inside the browser
Tested fixture
2 accepted · 0 rejected
How it works
Model output is only the first draft
2
Structure with on-device AI
Ask Chrome's built-in model for schema-constrained product, price, shipping, and link data.
3
Validate against the source
Reject prices and URLs that cannot be found in the captured page instead of trusting model output blindly.
Install and try
Load it directly from GitHub
- 1 Download the repository ZIP from GitHub or clone the public repository.
- 2 Open chrome://extensions and enable Developer mode.
- 3 Choose Load unpacked and select the repository directory.
- 4 Open a shopping page, click the extension, and select 현재 페이지 분석.
The first analysis can trigger an on-device model download. Progress appears in the extension popup.
Implementation evidence
Extension
Chrome Manifest V3, JavaScript
On-device model
Chrome LanguageModel API
Output controls
JSON Schema, source validation
Verification
Vitest, real Chrome fixture
Inspect the prototype
Read the source, run the tests, and load the unpacked extension in Chrome.