Turn a title into a URL slug: accents stripped, ampersands expanded, separator and max length under your control, truncation at a word boundary, and a collision check against slugs you already have. URL SLUG ACCENTS
Every status code, searchable, with plain-English notes.
Generate robots.txt and a sitemap skeleton.
Open Graph and Twitter cards with a live link preview and character counts.
Expand a crontab into its fields, plain English and the next real run times.
Length, area and volume change with temperature for any material, plus the fixed-length gap a joint needs to stay sealed from cold to hot.
Add or subtract business days with a real holiday calendar, count working days between two dates, and see every excluded weekend or holiday listed.
Bank a week of logged sleep against the hours you actually need, then read the recovery schedule that clears the debt without wrecking the next night.
Reflected light off a coated surface: reflectance and hue from film thickness, refractive index and incidence angle, with a plot across the visible band.
