Why Convert Between JSON and Excel?
JSON and Excel serve different audiences. Developers work with JSON for APIs, databases, and configuration. Business teams rely on Excel for analysis, reporting, and collaboration. Converting between the two bridges that gap, letting you move data seamlessly from a REST API response into a spreadsheet a stakeholder can open in Microsoft Excel or Google Sheets, and vice versa.
Manual conversion is tedious and error-prone. This tool automates it in your browser, preserving data types and column headers while requiring zero server interaction.
JSON to Excel — How It Works
Provide an array of flat objects. Each object key becomes a column header, and each object becomes a spreadsheet row.
A preview table shows exactly what your spreadsheet will contain before you download. Catch formatting issues early.
Click the download button and get a standards-compliant .xlsx file that opens in Excel, Google Sheets, LibreOffice, and any other modern spreadsheet application.
Excel to JSON — How It Works
Upload any .xlsx, .xls, or .csv file, and the tool reads the first sheet, treating the first row as column headers and every subsequent row as an object. The resulting JSON array is displayed with a preview table and a one-click copy button, ready to paste into your code, API request body, or database import script.
Common Use Cases
- 1
API response to spreadsheet. Fetch data from an API, paste the JSON into this tool, and hand a clean Excel file to your team for review or reporting.
- 2
Spreadsheet to database import. Convert a spreadsheet of product data or user records into JSON, then feed it into a database import script or an API POST request.
- 3
Data validation and cleaning. Export messy spreadsheet data to JSON, run automated checks in your language of choice, then convert back to Excel for stakeholders.
- 4
Prototyping and testing. Quickly generate sample Excel files from JSON fixtures for testing file upload features in your application.
- 5
Configuration management. Maintain settings or translation strings in a spreadsheet, then export to JSON for your application to consume at build time.
Frequently Asked Questions
How do I convert JSON to an Excel file?
Paste your JSON array of objects into the input field, set a sheet name if desired, preview the data in the table, and click "Download .xlsx". The conversion happens entirely in your browser using the SheetJS library — no data is uploaded to any server.
What JSON format is required for Excel export?
The tool expects a JSON array of flat objects. Each object becomes a row, and each key becomes a column header. Nested objects will be stringified into a single cell.
Can I convert an Excel spreadsheet back to JSON?
Yes. Switch to the "Excel to JSON" tab, upload your .xlsx or .xls file, and the tool will parse the first sheet into a JSON array of objects. Each row becomes an object, and each column header becomes a key. You can then copy the JSON output to your clipboard.
What file formats are supported for upload?
The tool supports .xlsx (modern Excel), .xls (legacy Excel), and .csv (comma-separated values) files. All parsing is handled client-side by the SheetJS library, so your files never leave your computer.
Is my data safe when using this converter?
Absolutely. The entire conversion process runs in your browser. No data is sent to any server, no cookies are stored, and no analytics track the content of your files. You can even use this tool offline once the page has loaded.