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Free workspace: documents, spreadsheets, calendar, notes and projects saved in a folder on your computer.Learn moreBrowse all 144 tools
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12 free tools

Converters

Quick, exact conversions for homework, travel, cooking and work, with every result in one view.

Every tool runs in your browser. Files stay on your device; results can be saved straight into your free workstand.

Unit ConverterLength, weight, temperature, volume and more.Time Zone ConverterCompare times and plan meetings across cities.CSV to ExcelTurn CSV files into an Excel workbook.

Units

Length, weight, temperature and more.

Unit ConverterLength, weight, temperature, volume and more.cm to InchesCentimeters to inches and back.kg to lbsKilograms to pounds and back.Celsius to Fahrenheit°C to °F and back.km to MilesKilometers to miles and back.

Spreadsheets

Move data between CSV and Excel.

CSV to ExcelTurn CSV files into an Excel workbook.Excel to CSVExport Excel sheets as CSV files.

Time and codes

Time zones, Roman numerals, Morse, binary and number bases.

Time Zone ConverterCompare times and plan meetings across cities.Roman NumeralsNumbers to Roman numerals and back.Morse Code TranslatorText to Morse and back, with sound.Text to BinaryText to binary, hex and back.Number Base ConverterBinary, octal, decimal and hex.

Guides

4 min read

How to convert a Unix timestamp

Turn epoch seconds or milliseconds into a readable date in UTC or your time zone, convert a date back to a timestamp, and avoid the usual off-by-1000 and time-zone mistakes.

4 min read

How to convert CSV to JSON

Turn spreadsheet exports into JSON arrays for code and APIs, with header rows, quoted fields and number detection, and convert JSON back to CSV.

4 min read

How to convert PDF to Excel

Get tables out of bank statements, invoices and reports into an .xlsx spreadsheet you can sort and sum, without retyping and without uploading the file.

Questions about converters

Is it really free?

Yes. There is no sign-up, no watermark, no daily limit and no paid plan. openWorkstand is paid for by a few ads on its public pages.

Often used together

CalculatorsMoney, health, school and everyday math, explained step by step.PDF toolsMerge, split, compress, convert, edit, sign and protect PDFs. Your files never leave your device.Developer toolsFormat, encode, decode and test without pasting secrets into a server.
Image toolsWriting & text toolsProductivity toolsAudio & video toolsDesign tools