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XLSXLSXODS

Excel to JSON online, free

Rows as JSON objects keyed by the header row.

  • Runs in your browser — no upload
  • Free, no sign-up, no watermark
  • Excel 97–2003 (XLS)
  • XLSX
  • OpenDocument Spreadsheet

How to use Excel to JSON

  1. 1

    Add your Excel 97–2003 (XLS), XLSX and OpenDocument Spreadsheet file

    Drop a file on the page, paste it, or click Select Files. Nothing is uploaded — it opens straight in your browser.

  2. 2

    Fine-tune the settings

    The defaults already suit most files; change them only if you need to.

  3. 3

    Run Excel to JSON

    Press the start button. Processing happens on your device, usually in seconds.

  4. 4

    Download the result

    Save the finished file, or continue with another tool without downloading in between.

What Excel to JSON can do

  • Private by design — files are processed in your browser and never uploaded
  • Free with no sign-up, no watermark and no daily limit

Excel to JSON — frequently asked questions

Is Excel to JSON really free?

Yes. Excel to JSON is free forever on Sada Files — no ads, no premium tier, no watermark, no daily cap that pushes you to pay. Every option on this page is available to everyone.

Do I need to sign up or create an account?

No. There is no account system at Sada Files. Open the page, drop your file, pick your options and save the result. History and saved workflows stay on your device.

Is my file uploaded anywhere?

No. Excel to JSON runs on your device — in your browser using WebAssembly, or inside the free native app. Your file never leaves your computer or phone, which is why there is no upload wait.

Which formats does Excel to JSON accept?

Excel to JSON accepts Excel 97–2003 (XLS), XLSX and OpenDocument Spreadsheet. Files are identified by their content, not their extension, so a mislabelled file still works.

Is there a file size or file count limit?

Only what your device can handle. Because processing happens locally there is no server cap, no queue and no "upgrade for larger files" message.

Can I chain Excel to JSON with other tools?

Yes. After every result a Continue with… menu lists every tool that accepts this output, and the file is handed over in memory. Save the chain as a workflow and re-run it on hundreds of files, or call it in one API request.

Does Excel to JSON work on my phone?

Yes. The web app works on Android and iOS browsers, and the free Sada Files app for Android, iOS, Windows, Linux and macOS runs Excel to JSON fully offline.

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