Utilities & Tools
A growing collection of fast, browser-only tools for programming, time, astronomy, and unit conversion.
Programming Tools
Character codes, base conversion, regex testing, JSON formatting, hashes, Base64, URL encoding, timestamps
Calendar and Time
World clock, timezone conversion, date difference, and Julian day calculations
Astronomy Tools
Sunrise/sunset times, moon phases, and planetary hours for any location
Unit Conversion
Length, mass, volume, area, time, speed, temperature, and data size — all bidirectional
Abjad Calculator
Premium
Calculate Abjad (Arabic) numerical values, generate magic squares, and more