18 tools
Time
Dates, cron, percentages, bases, and units.
- Timestamp converterConvert a Unix timestamp to a date and a date to a timestamp.
- Timezone converterShow an instant in UTC and in another zone.
- ISO 8601 formatterShow an instant as ISO, a date, and an ISO week.
- Date differenceCalculate days, hours, and the calendar difference.
- Age calculatorCalculate years, months, and days until today.
- Duration converterConvert durations with ms, s, m, h, and d.
- Epoch inspectorShow seconds, milliseconds, and ISO for a timestamp.
- Cron next runsList five future times for a five-field expression.
- Percentage calculatorCalculate p% of n, a/b, and n + p% or n - p%.
- Number base converterConvert an integer between bases 2 and 36.
- Binary calculatorAdd, subtract, multiply, and apply bitwise operations.
- Scientific notationShow a number in decimal and scientific notation.
- Random numbersGenerate integers with the browser's cryptographic generator.
- Basic statisticsCalculate sum, mean, median, min, max, and deviation.
- Byte converterConvert bytes between SI and IEC units.
- Transfer calculatorEstimate how long a size takes at a given rate.
- Subnet calculatorCalculate network, mask, broadcast, and range for an IPv4 CIDR.
- chmod permissionsConvert octal and symbolic rwx.