JSON to Excel Converter

Convert a JSON array to a formatted Excel .xlsx file — ready to open in Microsoft Excel or Google Sheets.

Free No signup Real .xlsx file Runs in browser

Sheet name:

Input JSON

Ready

Preview

JSON preview will appear here

How to convert JSON to Excel

Paste your JSON array

Your JSON must be an array of objects. Each object becomes a row, each key becomes a column header.

Preview the table

See how your data will look in the spreadsheet before downloading.

Download .xlsx

Click Download to get a real Excel file. Open it in Microsoft Excel, Google Sheets, or LibreOffice Calc.

JSON to Excel — Bridging API Data and Business Spreadsheets

Excel and JSON represent two worlds: the business world of spreadsheets and the developer world of APIs. JSON to Excel conversion bridges them — transforming structured API data into the tabular format that non-technical users can open, analyze, filter, and share without any programming knowledge. It's the last mile between your backend and your stakeholders.

Why Excel over CSV

CSV is plain text. Excel (.xlsx) is a full document format with data types, formatting, multiple sheets, and formulas. When you export JSON to Excel, numbers stay numbers (not text strings), booleans display as TRUE/FALSE rather than "true"/"false", and the resulting file opens correctly in Excel without any import wizard or delimiter configuration. For business users, the difference matters.

How SheetJS generates Excel files

This tool uses SheetJS (xlsx.js), the most widely-used JavaScript Excel library. It runs entirely in your browser — no server involved. SheetJS converts the JSON array to an internal worksheet object, applies column width calculations based on content, and generates the binary .xlsx format. The file downloaded is identical to one created in Microsoft Excel.

Opening the file in Google Sheets

After downloading, go to Google Sheets and select File → Import → Upload. Select your .xlsx file. Google Sheets fully supports the Excel format and preserves all data. You can also drag the file directly into an open Google Sheets tab. Once imported, you can share it via Google Drive link instead of attaching the file to emails.

Frequently asked questions

What is the difference between JSON to Excel and JSON to CSV?

Both create spreadsheet-compatible output, but .xlsx is a real Excel file with formatting support, multiple sheets, and proper data types. CSV is plain text with commas. Use Excel for files you'll share with business users; CSV for programmatic processing.

Can I open the downloaded file in Google Sheets?

Yes. Go to Google Sheets, click File → Import → Upload, and select the downloaded .xlsx file. Google Sheets fully supports the Excel format.

What format does my JSON need to be in?

A flat array of objects: [{"name":"Alice","age":28}]. Each object becomes a row. Nested objects are serialized as strings in the cell.

Is my data safe?

Yes. The .xlsx file is generated entirely in your browser using the SheetJS library. No data is sent to any server.

Is there a row limit?

No server-side limits. Excel itself supports up to 1,048,576 rows per sheet. For very large datasets, performance depends on your browser.

Can I convert multiple JSON arrays to multiple sheets?

This tool converts one JSON array to one sheet. For multi-sheet Excel files, use the SheetJS library in your own code.