Converters tools

Convert between degrees, radians, gradians, turns, arcminutes and arcseconds.

Convert between square metres, square feet, acres, hectares and square miles.

Convert clothing sizes between UK, US and EU, with the chest or bust measurement each corresponds to.

Keep only the columns you need from a CSV, in the order you choose them.

Convert between cups, tablespoons, teaspoons, millilitres and fluid ounces.

Compare two CSV files by a key column and see which rows were added, removed or changed.

Convert CSV into an array of JSON objects, with delimiter detection and optional typing.

Convert between comma, tab, semicolon and pipe delimited files.

Convert CSV rows into XML records, with names and values escaped correctly.

Convert CSV rows into a YAML list, quoting values YAML would otherwise misread.

Check a CSV for ragged rows, duplicate headers and structural problems before importing it.

Open a CSV as a sortable, filterable table and see which rows are malformed.

Remove duplicate rows from a CSV, matching on the whole row or one column.

Sort CSV rows by any column, with numbers sorted numerically rather than as text.

Convert between bytes, kilobytes, megabytes, gigabytes and their binary equivalents.

Convert a Word document to clean semantic HTML, with headings, nested lists and tables.

Extract the text from a Word document, keeping headings, lists and table rows.

Convert between joules, kilowatt hours, calories, food Calories and BTU.

Convert between newtons, kilonewtons, pound-force and kilogram-force.

Convert between hertz, kilohertz, megahertz, gigahertz, rpm and beats per minute.

Convert between MPG (US), MPG (UK), L/100 km and km/L. Compare fuel economy figures from different countries with the correct conversion.

Strip HTML to readable plain text, keeping paragraphs, list markers and link URLs.

Convert a date between ISO 8601, Unix time, week dates and ordinal dates.

Convert JSON to XML or XML back to JSON, in either direction.

Convert JSON to YAML or YAML back to JSON, in either direction, with indent control.

Turn an array of JSON objects into CSV, flattening nested objects into dotted columns.

Check whether a year is a leap year, and see why the rule is more than divide by four.

Convert between millimetres, centimetres, metres, kilometres, inches, feet, yards and miles.

Convert numbers between binary, octal, decimal, hexadecimal and any base to 36.

Convert between watts, kilowatts, mechanical and metric horsepower, and BTU per hour.

Convert between pascals, bar, psi, atmospheres, torr and mmHg.

Convert between pixels, rem, em, points and physical units at 96 dpi.

Keep only the CSV rows matching a condition on one column.

Convert a shoe size between UK, US men's, US women's, EU and foot length in centimetres.

Convert between km/h, mph, metres per second and knots.

Convert between Celsius, Fahrenheit and Kelvin with the formulas shown.

Convert text to binary, hex, decimal or octal bytes, and back again, in UTF-8.

Turn plain text into HTML paragraphs, escaping the text and linking URLs.

Convert between milliseconds, seconds, minutes, hours, days, weeks and years.

Convert between newton metres, pound-feet, pound-inches and kilogram metres.

Convert Unix timestamps to human dates and back, in local time and UTC, with ISO 8601 output.

Convert between litres, millilitres, cubic metres, US and imperial pints, quarts and gallons.

Find the ISO week number and day of the year for any date, with the edge cases explained.

Convert between grams, kilograms, tonnes, ounces, pounds, stones and tons.

Turn repeating XML records into CSV rows, finding the record element for you.

Convert YAML to XML or XML back to YAML, with attributes and type handling you control.