Excel to JSON Converter

Convert Excel (.xlsx) files to JSON format with multi-sheet support

Upload Excel file (.xlsx)

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How to Convert Excel to JSON

  1. Upload your Excel (.xlsx) file
  2. Select which sheet to convert if multiple sheets exist
  3. Click convert to transform Excel data to JSON
  4. Download JSON file or copy the result

Why Use Our Excel to JSON Converter?

  • Multi-Sheet Support: Select and convert any sheet from your workbook
  • Type Detection: Automatically preserves numbers, dates, and text formatting
  • Large File Handling: Process Excel files with thousands of rows
  • Bidirectional: Convert Excel to JSON and JSON back to Excel
  • Preview Mode: See JSON output before downloading
  • 100% Private: Files never leave your browser

Why Convert Excel to JSON?

Excel is designed for human-readable spreadsheets, while JSON is built for machine-readable data exchange. Converting Excel to JSON lets you automate workflows, integrate with APIs, and feed data into web applications.

Common scenarios: You have a product catalog in Excel and need to import it to an e-commerce platform. You maintain a contact list in Excel and want to sync it with a CRM API. You export reports from business tools as Excel but need JSON for data analysis pipelines.

JSON preserves the structure of your Excel data while making it accessible to JavaScript frameworks, REST APIs, NoSQL databases like MongoDB, and data processing tools. Each Excel row becomes a JSON object with column headers as keys.

Privacy & Security

Your Excel files are processed entirely in your browser using JavaScript. No data is uploaded to servers, and nothing is stored or logged. The conversion happens locally on your device, so your data remains private.