Free Online JSON to Excel Converter & Excel to JSON Tool

Convert JSON to Excel (XLSX) or Excel to JSON in seconds with our free, privacy-first online converter. Paste your JSON data, upload a .json file, or drop an Excel spreadsheet — get a clean, downloadable result instantly. Everything runs entirely in your browser. Your data never leaves your device.

Perfect for developers, data analysts, and anyone who needs to turn API responses, database exports, or nested JSON into spreadsheet-ready tables — or convert Excel back into clean JSON for apps and APIs.

Why Use This JSON to Excel Converter?

• Bidirectional conversion — JSON → Excel and Excel → JSON in one tool
• Handles nested JSON — Automatically flattens objects into columns using clear dot notation (e.g., address.city)
• Supports arrays of objects — The most common JSON structure from APIs becomes clean rows and columns
• 100% client-side & private — No file uploads to any server. Process sensitive data safely
• No signup, no limits for everyday use — Free, instant, works offline after the page loads
• Clean XLSX output — Compatible with Microsoft Excel, Google Sheets, LibreOffice, and more
• Preview before download — Check your table structure before exporting

Whether you need to convert JSON to Excel for reporting, open a JSON file in Excel-friendly format, or turn a spreadsheet into structured JSON, this tool makes the process fast and reliable.

How to Convert JSON to Excel

1. Paste your JSON (array of objects works best) or upload a .json file.
2. The tool validates and flattens nested structures automatically.
3. Preview the resulting table.
4. Download the .xlsx file — ready to open in Excel or Google Sheets.

How to Convert Excel to JSON

1. Upload your .xlsx or .xls file (or paste tabular data).
2. The first row becomes keys; each following row becomes a JSON object.
3. Download or copy the clean JSON output.

Common Use Cases

• Turn API responses into Excel reports for non-technical teammates
• Export MongoDB, Elasticsearch, or app data as JSON and analyze it in spreadsheets
• Convert configuration or feature-flag JSON into editable Excel, then convert back
• Prepare clean JSON from Excel for web apps, Shopify, WooCommerce, or custom tools
• Quickly open and explore JSON files without writing code

Related Free Tools on AthemeArt

Need other data format conversions? Try these:

• JSON to CSV Converter — Convert JSON arrays to CSV for lightweight sharing or import into almost any tool
• XML to JSON Converter — Transform XML documents into clean JSON
• JSON to XML Converter — Convert JSON structures back to XML when needed

You can also explore our PDF to JSON Converter for extracting structured data from PDFs.

Tips for Best Results

• Prefer an array of objects for the cleanest table output.
• Nested objects are flattened with dots (user.profile.name).
• Simple arrays (tags, categories) are usually joined into a single cell.
• For recurring imports inside Excel itself, Microsoft’s Power Query (Data → Get Data → From File → From JSON) is a powerful built-in option.
• Always validate your JSON first if the conversion fails.

Frequently Asked Questions

How do I convert JSON to Excel online for free?

Paste or upload your JSON, click convert, and download the XLSX file. No account required.

Can I open a JSON file directly in Excel?

Yes — either use this converter for a one-click XLSX file or Excel’s Power Query feature for ongoing connections.

Does this tool handle nested JSON?

Yes. Nested objects are automatically flattened into readable columns using dot notation.

Is my data safe?

Yes. All conversion happens locally in your browser. Nothing is uploaded or stored on our servers.

Does it support Excel to JSON as well?

Yes — upload an Excel file and get clean, structured JSON back.