Manage device warranty periods, serial numbers, invoices and service center info with expiry alerts.
Generate unique RFC 4122 v4 UUIDs or GUIDs singly or in bulk.
Convert instantly between metric and imperial units for length, weight, volume and more.
Scan QR codes and barcodes from photos, see the content type and copy the result.
Save several lists and pick one item at random, with a no-repeat mode until the round ends.
Create standard QR codes for text, links, WiFi, vCard contacts, email and phone numbers.
Versatile percentage math: X% of Y, ratios, increases, decreases and sale discounts.
Create strong random passwords with custom length, character sets and a strength meter.
Generate a number or a list of random numbers within a custom range.
Calculate the exact gap between two dates, working days, weeks and months.
An interactive 2D color picker with color codes, harmonies and 50-900 shade generation.
Instantly convert between HEX, RGB, HSL, HSV and CMYK and check contrast.
A versatile pocket calculator for basic and advanced arithmetic, powers and roots.
Generate standard 1D barcodes such as CODE128, EAN-13 and UPC-A, then save as PNG or SVG or print.
Calculate your exact age in years, months and days, count down to your next birthday and see your zodiac sign.