Data converter
Convert CSV, JSON, XML, YAML and Excel files in your browser. Nothing is uploaded.
Drop data or document files here
Converted on your device. Files are never uploaded.
CSV, XLSX, JSON, TSV, XML or YAML, up to 20 files.
Data moves between tools in different shapes: a spreadsheet export as CSV, an API response as JSON, a config file as YAML. Drop a data file here and FormatJet recognises it and lists the formats it can become. Conversions run in your browser, so your records never leave your device.
From CSV
From JSON
From TSV
From XLSX
From XML
From YAML
Questions
Which data conversions are available?
CSV to and from JSON and XML, JSON to and from XML and YAML, TSV to CSV, Excel to CSV and JSON, and CSV, JSON or XML to Excel (XLSX).
How does the converter tell CSV from JSON?
It looks at what the file contains rather than its name. JSON and XML are recognised by their structure, and CSV or TSV by a separator that appears the same number of times on every line.
Can I open the result in a spreadsheet?
Yes. CSV to Excel, JSON to Excel and XML to Excel each write an XLSX workbook, which opens in Excel and other spreadsheet apps.
Are my spreadsheets uploaded?
No. Reading and writing the data both happen in your browser, so customer lists, exports and other records stay on your device, including when this page hands a file to a conversion page.