Timezone Converter

Unix Timestamp ↔ Date

Convert Unix time to a date and back, with support for arbitrary (IANA) time zones.

Cron Parser

Parse a cron expression (5 or 6 fields, including @-shortcuts) — a plain-language schedule description and next run times in a chosen time zone.

Number Base Converter

Convert between binary, octal, decimal, hexadecimal, and any arbitrary (2-36) base — enter a number into any field.

Bitwise Operations

AND/OR/XOR/NAND/NOR/XNOR/NOT and shifts on integers of a given width (8/16/32/64 bits) in any number base.

Date Diff Calculator

Exact difference between two dates/times — calendar breakdown (years, months, days…), total duration, and business day count.

Age Calculator

Exact age from a birth date — years/months/days, total time lived, and the next birthday.

Cookie Parser

Parse a Set-Cookie header or a Cookie/document.cookie string into name, value, attributes, and a check for common security mistakes.

URL Parser

Break a URL down into its parts — protocol, host, port, path, query parameters, fragment.

Color Converter

Convert colors between HEX, RGB, HSL, HSV/HSB, and CMYK — enter a value into any field and the rest update instantly.

UUID Generator

Generate UUID versions 1, 3, 4, 5, 6 and 7 — random, time-based, and name-based.

Sort & Dedupe Lines

Sort lines of text alphabetically, remove duplicates, empty lines, and extra whitespace.

Lorem Ipsum Generator

Placeholder text generator — by paragraphs, sentences, or individual words.