Tools.

Length, area, weight, volume & temperature.

Live & historical rates (Frankfurter).

BMI, healthy range, body fat & daily calories.

Exact age in years, months & days.

Monthly payment, interest & total.

Percentages, change & of-total.

Tip, total & split per person.

Sale price and amount saved.

Add or remove tax from a price.

Fill a form, print a clean CV.

Words, characters, sentences & more.

UPPER, lower, Title & sentence case.

Reverse letters, words or lines.

Placeholder paragraphs on demand.

Spot the differences between texts.

Convert Markdown to clean HTML.

Simple checklist, saved locally.

Focus / break work cycles.

Quick notes that persist.

Count down to any moment.

Tick off daily habits, saved locally.

Batch-generate v4 UUIDs, any format.

Pick colors & generate palettes.

Turn text or links into a QR.

Strong, customizable passwords.

Encode & decode Base64.

Format, minify, validate & visualize JSON.

Build gradients, copy the CSS.

Make favicons from text or emoji.

Pick a number in any range.

Roll one or many dice.

Heads or tails.

Time anything, with laps.

Measure on-screen with a reference.

Days between two dates.

Compare times across zones.

Generate a memorable strong password or PIN, or check one's strength.

A fresh quote on every click.

Invent names & usernames.

A pocket player with play/pause, seek & volume.

Copy-paste console scripts for any page — unlock, clean up, navigate, or inspect it.