Handy tools for everyday tasks.
Calculate your exact age in years, months, and days from your date of birth, and see how long until your next birthday.
Calculate percentages instantly: find X% of a number, work out what percentage one number is of another, or calculate percentage increase or decrease.
Generate a QR code from any text, URL, email, phone number, or Wi-Fi network entirely in your browser, then download it as a PNG.
Calculate the discount amount and final price after a percentage discount, or stack multiple successive discounts to see the true final price.
Convert between metric and imperial units of length, weight, temperature, and volume instantly, with accurate conversion factors for every common unit.
Generate a strong, random password with configurable length and character types, using your browser's cryptographically secure random number generator.
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