Converters

Unit, data format, and text converters

Two different kinds of conversion live here. One is measurement - units, currency, height, timezones, data sizes - where you want a number in different terms. The other is data format, where the same information has to be re-expressed as JSON, CSV, XML, YAML, or Markdown so another program will accept it. Both are instant and neither needs an account.

All 20 Converters

Unit ConverterConvert length, weight, temperature and more.Height ConverterConvert height between centimeters and feet & inches instantly.Currency ConverterConvert between world currencies.JSON to CSVConvert JSON data to CSV format.CSV to JSONConvert CSV files to JSON format.XML to JSONConvert XML data to JSON format.Markdown to HTMLConvert Markdown text to HTML.HTML to MarkdownConvert HTML to Markdown format.Number to WordsConvert numbers into written words.Words to NumberConvert written words back to numbers.Binary ConverterConvert binary, decimal, hex, octal.Timestamp ConverterConvert between Unix timestamps and human-readable dates.Timezone ConverterConvert a date and time across multiple time zones.YAML to JSONConvert YAML to JSON and JSON back to YAML.Data Storage ConverterConvert between bytes, KB, MB, GB, and TB.Roman Numeral ConverterConvert numbers to Roman numerals and back.JSON to XMLConvert JSON data to XML format.Slug GeneratorConvert text into a clean, URL-friendly slug.ASCII ConverterConvert text to ASCII hex, binary, and decimal codes.Markdown Table GeneratorConvert comma-separated data into a Markdown table.

Which one do you need?

The tools above overlap in places. This is the quickest way to pick the right one.

You need length, weight, temperature, area, or speed
Unit ConverterOne page for the everyday measurement conversions instead of a separate tool each.
You need a rate between world currencies
Currency ConverterUses live reference rates rather than a stale built-in table.
You are scheduling across regions
Timezone ConverterHandles the daylight-saving offsets that make manual arithmetic wrong twice a year.
You want API data in a spreadsheet
JSON to CSVFlattens the structure into rows and columns Excel and Sheets will open.
You are feeding spreadsheet data into code
CSV to JSONThe reverse trip, with your header row becoming the object keys.
You are moving between config formats
YAML to JSONSame data, different syntax - useful when a tool accepts only one of them.
You have a Unix timestamp in a log or database
Timestamp ConverterTurns 1735689600 into a date you can read, and back again.
You need binary, hex, octal, decimal, or text
Binary ConverterAll five at once, exact at any size, with the arithmetic shown.

Frequently asked questions

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