HTML → Markdown converter

JSON ↔ CSV converterConvert an array of JSON objects to CSV and back. JSON ↔ XML converterConvert JSON to XML and XML to JSON. Unix timestamp converterConvert Unix timestamps (seconds or milliseconds) to dates and dates to timestam... Time zone converterConvert a time between world time zones. Date difference calculatorDays, weeks, months and working days between two dates. Number base converterConvert numbers between binary, octal, decimal, hex and any base 2–36. Roman numeral converterConvert numbers to Roman numerals and back. Unit converterLength, weight, temperature, area, volume, speed and data size.