Live rates between 30+ currencies. Updated daily by the European Central Bank.

Live US stock quotes with daily change, volume, and key trading stats. Powered by Alpha Vantage.

Split a bill, add a tip, divide evenly. Tax-aware. Mobile-friendly.

Monthly payments, total interest, amortization schedule.

Length, weight, volume, temperature, area. Metric & imperial.

Strong, random passwords. Customize length and character types.

QR codes for URLs, text, Wi-Fi, contacts. Download as PNG.

Paste any tracking number — UPS, FedEx, USPS, DHL, Canada Post, Amazon. Auto-detects the carrier.

Pick a base color, get 5 matching shades. Analogous, complementary, triadic, mono.

Official holidays for 100+ countries by year. Plan trips and deadlines.

Convert times across any zones. Schedule global meetings instantly.

30+ languages powered by DeepL. Auto-detect source, copy result with one click.

Body Mass Index in metric or imperial. WHO categories explained.

Years, months, days, hours, seconds — even nanoseconds. Live updating.

Focus in 25-minute sprints. Customizable, runs in your tab. No login.

Classic logic puzzle. Easy/medium/hard, notes mode, error checking.

Build flashcard decks, study with quick-flip review. Backup to a file anywhere.