Data & conversions

Work with common formats, numbers and measurements.

10 practical tools in this category

Calculate percentage rise or fall from one number to another.

Find what percentage one figure represents of a larger number.

Reduce a ratio of two positive whole numbers.

Convert common length, weight, volume and temperature units.

Convert a CSV table with headers into JSON records.

Validate and pretty-print JSON text.

Inspect row and column counts and preview CSV records.

Create a strong random password using browser cryptography.

Generate a standards-compliant random UUID.

Convert a Unix timestamp into UTC and your local date.