tools
Learn how to parse XML structures into JSON objects online for free in your browser. Reformat data markup locally without server uploads.
Learn how to monitor your laptop, tablet, or phone battery details online using standard browser APIs. View battery health, cycle estimations, and level checks.
Learn how web systems identify your device using browser fingerprinting. View your canvas signatures, fonts, and headers locally to protect privacy.
Learn how to benchmark and stress test your processor inside your web browser. Estimate floating-point calculations and thread capacity locally.
Learn how web browsers identify your system dark or light theme preferences using CSS media queries. Check your browser style settings locally.