Excel to JSON Converter

Upload an Excel file and get clean JSON output instantly.

Click to upload .xlsx / .xls

Supports .xlsx and .xls

About the Excel to JSON Converter

This tool converts Excel to JSON, reading an XLSX workbook and writing an array of objects keyed by the header row. Cell types are carried across, so numbers and dates arrive usable rather than as strings needing parsing.

Convert Excel to JSON when the source of truth is a spreadsheet but the consumer is code. Product catalogues, pricing tables, translation strings and configuration are all commonly maintained in Excel by the people who own the data, then need to reach an application.

Because XLSX stores real cell types, the conversion is more reliable than going through CSV: a number is already a number and a date is already a date, so nothing has to be guessed from its text form. The header row becomes object keys and each following row becomes one object.

That makes the workbook a workable editing surface for non-developers — they update cells, you convert to JSON and ship it, with no manual retyping in between.

How to use the Excel to JSON Converter

  1. Upload the workbook. Drag an XLSX file onto the drop zone or browse for it.
  2. Choose the sheet. Pick which sheet to convert if the workbook has several.
  3. Convert to JSON. Run the conversion. The header row becomes the object keys.
  4. Copy or download. Copy the JSON or download it as a .json file.

Excel to JSON Converter features

  • Supports .xlsx files
  • Preserves data structure
  • Maintains column headers
  • Handles multiple data types
  • Array of objects output
  • Secure browser processing

Frequently asked questions

Are cell types preserved?

Yes. Because XLSX stores real types, numbers stay numbers and dates stay dates rather than being guessed from text.

How are column headers used?

The first row becomes the JSON object keys, so each following row converts to one object in the array.

Can I convert a specific sheet?

Yes. Choose the sheet before converting if the workbook has more than one.

Why convert from Excel instead of CSV?

CSV loses type information, so everything has to be inferred from text. XLSX keeps types, making conversion more reliable.

Are empty cells included?

Empty cells become null so every object keeps the same shape, which is easier to consume in code.