Utilities

Convert length, weight, temperature, area, volume, and speed units from one hub with popular metric and imperial conversions.

Convert length units including cm to inches, inches to cm, mm to inches, feet to meters, meters to feet, km to miles, and miles to km.

Convert weight and mass units including kg to lbs, lbs to kg, grams to ounces, ounces to grams, stone to kg, and metric tons.

Convert temperature units including Celsius to Fahrenheit, Fahrenheit to Celsius, Celsius to Kelvin, Kelvin to Celsius, and Fahrenheit to Kelvin.

Convert area units including square feet to square meters, square meters to square feet, acres to hectares, hectares to acres, square inches, and square miles.

Convert volume units including liters to gallons, gallons to liters, ml to ounces, cups to ml, cubic feet, cubic meters, pints, and quarts.

Convert speed units including mph to km/h, km/h to mph, meters per second to mph, knots to mph, feet per second, and meters per second.

Format, minify, validate, sort, and inspect JSON with a tree viewer, parse error details, structure metrics, copy, and download output.

Encode text to Base64 or decode Base64 to UTF-8 text with URL-safe alphabet support, optional padding, byte counts, copy, and swap.

Encode and decode URL components or full URLs, handle plus-space form encoding, inspect query parameters, copy output, and swap direction.

Generate UUID v4 and UUID v7 identifiers in batches, copy values, format uppercase or compact output, and validate pasted UUIDs.

Generate strong random passwords or memorable passphrases with browser crypto, character set controls, ambiguity filtering, entropy estimates, and copy-ready batches.

Convert Unix timestamps in seconds, milliseconds, microseconds, or nanoseconds to local time, UTC, ISO 8601, relative time, weekday, and back again.

Generate custom QR codes for URLs, Wi-Fi, contacts, email, SMS, phone numbers, locations, and events with SVG, PNG, payload, and iframe export.

Count words, characters, paragraphs, reading time, A4 pages, and standard pages from pasted text or local PDF, Word, OpenDocument, spreadsheet, presentation, ebook, subtitle, and text files.