Quick references with built-in calculation.
Some tools double as references — cron syntax with explanations, regex tester with capture-group highlighting, number-base converter with bitwise operators. Tools tagged cheatsheet teach as you use them.
Convert between Unix timestamps and human-readable dates.
Convert between units of length, weight, temperature, and data size.
Convert numbers between decimal, binary, hexadecimal, and octal.
Explain cron expressions in plain English and preview the next runs. All client-side.
Convert between camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, Title Case, and more.
Convert a date/time across multiple timezones at once. All client-side.