Convert Excel To JSON Faster On The Fly

Excel to JSON Converter – Free Online Tool

Our Excel to JSON converter makes it simple to transform your spreadsheet data into structured JSON format. Just upload your XLSX or XLS file, and the tool instantly converts it into clean JSON you can preview and export. Everything runs securely in your browser, with no server uploads.

How It Works

  1. Upload an Excel file (.xlsx or .xls) from your computer.
  2. The tool reads the spreadsheet and extracts table data.
  3. Click the Convert to JSON button.
  4. Preview your formatted JSON in the editor, then export it as a .json file or copy it instantly.

Once loaded, the tool works completely offline, so your spreadsheet data never leaves your device.

Why Use Excel to JSON Converter?

  • Fast Conversion: Upload and convert in just seconds.
  • Developer-Friendly: Prepare JSON files for APIs, web apps, or NoSQL databases.
  • Offline & Secure: Your files are processed locally in your browser – nothing is uploaded.
  • Accurate Structure: Keeps your spreadsheet layout intact during conversion.

Key Features

1. File Upload Support

Directly upload an Excel file (.xlsx or .xls) and get structured JSON in one step.

2. Instant JSON Preview

View your converted data in a clean JSON editor before saving it.

3. Export to JSON

Download the output as a .json file or copy the structured data for use in your projects.

4. Works Without Internet

Once opened in your browser, the tool works offline for maximum security and privacy.

Who Can Use This Tool?

  • Developers – generate JSON for applications and APIs from Excel spreadsheets.
  • Students – convert data tables for projects or coding practice.
  • Data Analysts – quickly transform Excel datasets into JSON for further processing.
  • Anyone – who needs a quick and reliable Excel to JSON converter without software installation.

Conclusion

This free Excel to JSON converter is a lightweight, secure, and offline-first solution for anyone needing accurate JSON output from spreadsheets. Upload your Excel file today and get structured JSON in seconds.

Frequently Asked Questions (FAQ)

1. Is this Excel to JSON converter free?

Yes, the tool is completely free to use. You can convert Excel files to JSON format without any cost.

2. Does my file get uploaded to a server?

No. All processing happens locally in your browser. Your data never leaves your device, making it secure and private.

3. What file types are supported?

The converter currently supports .xlsx and .xls Excel files.

4. Can I use the tool offline?

Yes. Once the page is loaded in your browser, the tool works offline without an internet connection.

5. Who should use this tool?

This tool is designed for developers, data analysts, students, and anyone needing quick Excel to JSON conversions.