Excel to JSON Converter

Convert an Excel sheet into structured JSON with header-aware parsing in your browser.

100% Client-Side Processing

All conversion happens in your browser. Your files are not uploaded to a server.

Sheet options

Line endings

What is this tool?

This tool opens an Excel workbook in your browser and exports the sheet you choose as JSON.

It is useful when you want to isolate one worksheet from a larger file and move it into a simpler format for imports, automation, or review.

How it works

  • Upload an Excel file.
  • Choose the worksheet you want to convert and decide whether the first row contains headers.
  • Generate the output and download that sheet in the target format.

Conversion settings

Worksheet selection

You can export exactly the worksheet you need without converting the rest of the workbook.

Headers

Choose whether the first row contains column names. This matters especially for JSON output.

JSON structure

JSON output uses headers as keys, which makes it easier to work with APIs, scripts, and integrations.

Common use cases

  • Extracting one worksheet to share without sending the full workbook.
  • Turning an Excel tab into data that is easier to import into another platform.
  • Preparing workbook data for automation, integrations, or quick validation.

Frequently asked questions

Does it preserve formulas and styling?

No. The conversion focuses on the visible cell values, not workbook formatting.

Can I choose only one sheet?

Yes. You can select the exact worksheet you want to export.

Does the Excel file leave my device?

No. Workbook parsing and export happen locally in your browser.

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