Utility

General-purpose generators, analyzers, and calculators.

Calculate age from a birth date and optional comparison date.

Calculate body mass index from height and weight.

Convert colors between HEX, RGB, and HSL.

Compute MD5, SHA-1, and SHA-256 hashes of text or a file.

Estimate monthly payments and total repayment for a loan.

Calculate percentages, increases, and decreases.

Generate a QR code image from text, a URL, or other payload.

Generate a password with configurable complexity.

Count words, characters, sentences, and common words.

Convert Unix timestamps to human-readable dates and back.

Decode a percent-encoded URL or string.

Percent-encode a URL or string.