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Excel to JSON Converter

Convert Excel spreadsheets to JSON using the first row as keys. Multi-sheet workbooks supported.

Your files never leave your device

How to convert Excel to JSON

  1. 1

    Choose your Excel files

    Click the upload area or drag files onto it. Nothing is uploaded — files are opened locally.

  2. 2

    Start the conversion

    Press the convert button. Your browser converts the files in seconds.

  3. 3

    Download the result

    Save each file individually or everything at once as a ZIP.

Turn a spreadsheet maintained by your team into JSON for apps, websites and seed data — without copy-pasting.

What is Excel?

XLSX is the Microsoft Excel workbook format. It supports multiple sheets and formatting, and opens in Excel, Google Sheets, Numbers and LibreOffice.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight structured data format used by virtually every web API and modern application.

Safe for confidential files

Unlike upload-based converters, ZapMorph processes files inside your browser tab. Your documents are never transmitted, stored or logged — close the tab and they’re gone.

Frequently asked questions

Is the excel to json converter free?

Yes. Convert 1 file a day without an account, or 5 files a day with a free account. Pro removes all daily limits.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser, so your files never leave your device. We only count how many files you convert — never their names or contents.

What is the maximum file size?

Up to 25 MB per file without an account, 50 MB with a free account, and 1 GB on Pro. Very large files also depend on your device’s memory.

Can I convert multiple Excel files at once?

Yes. Select several Excel files at once — up to 5 on the free plan or 50 on Pro — and download all results in a single ZIP.

Does it work on Mac, Windows, iPhone and Android?

Yes. It works in any modern browser — Chrome, Edge, Firefox and Safari — on desktop and mobile, with nothing to install.

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