Useful tools, clear boundaries
A focused workbench
PageKit collects the checks between an idea and a finished interface. Inspect one color pair, read a URL, calculate dimensions, or generate local random text. Results stay actionable and narrow: a contrast ratio is not a full audit, and parsing a link does not establish trust.
What you can do here
The current collection includes color contrast checker, hex & rgb converter, url inspector, password generator, aspect ratio calculator. Each tool has its own page, a worked example, and a clear explanation of its method.
How results are produced
The site uses JavaScript for local calculations and plain HTML for guides and navigation. No account is needed. We label assumptions and check inputs, while acknowledging that floating-point arithmetic, rounding, and real-world conditions affect how a result should be interpreted.
Corrections and feedback
If you find an error, tell us which tool you used, the inputs you entered, and the result you expected. The contact page prepares an email in your own email app. Please do not include private identifiers, passwords, or confidential documents.