Inspection & Security
5 utilities · Entropy analysis, URL dissection, contrast, and device info.Password Strength Testerzxcv
Score passwords and see how to improve them.URL Parserurl
Break any URL into its components.Contrast Checkerwcag
WCAG contrast ratios for accessible colors.QR / Barcode Scannerscan
Scan QR codes from a file or webcam — locally.Device & Browser Infoenv
See your browser, screen, language and more.Why use Inspection & Security utilities on debug.tools?
Every tool in this category executes entirely within your browser runtime using the Web Crypto API, Canvas API, or native JavaScript parsers. Whether you are working with proprietary enterprise data, sensitive keys, or private files, your inputs are never transmitted over the internet or logged to any server.
Frequently Asked Questions
Are the utilities in Inspection & Security free to use?
Yes, all 5 tools in the Inspection & Security category are 100% free with no account creation, subscriptions, or rate limits.
Do tools in Inspection & Security upload my files or data to a server?
No. Every calculation, format conversion, and media transformation executes strictly inside your local browser memory using client-side JavaScript and modern Web APIs.
Can I use these Inspection & Security tools offline?
Yes. Once the page is loaded in your browser, the tools operate with zero remote API dependencies and work completely offline.