Archives: Tools

This tool separates a simple calendar-date difference from an elapsed-time calculation so users can state which interpretation they need.

This checker calculates the relative luminance contrast ratio for two sRGB colors and compares the result with common WCAG thresholds.

This tool creates UUID v4 values for examples, fixtures, and local testing without requiring a server request.

This tool generates a random password using the browser crypto API when available and makes the character choices visible before producing the result.

This tool turns a flat JSON array of objects into a CSV table while quoting fields that contain commas, quotes, or line breaks.

This tool converts a small CSV text table into an array of JSON objects using the first row as field names.

This tool calculates a repeatable digest for a text input so users can compare whether two inputs produce the same SHA-256 output.

This tool provides transparent text counts for a draft without uploading the draft to a server.

This tool gives a quick visual preview of a limited Markdown subset without requiring a repository or publishing system.

This tool provides a small, visible test loop for a JavaScript pattern so users can inspect matches before placing the expression into application code.