Excel to JSON Converter
Convert your Excel (.xlsx) files to JSON format. Choose structure and property naming options.
About the Excel to JSON Converter
The Excel to JSON Converter transforms an .xlsx workbook into structured JSON that applications and APIs can consume directly. Rows become objects and column headers become keys, so spreadsheet data becomes developer-ready in one step.
Business data lives in Excel, but software speaks JSON. Converting a workbook to JSON lets you move budgets, inventories, and lists straight into a web app, a database seed, or an API payload without manual reformatting.
The conversion is done in your browser, so your data never leaves your device. That keeps internal figures and customer data private, with no upload and no account required.
How to use the Excel to JSON Converter
- Upload the Excel (.xlsx) file you want to convert.
- Choose the sheet to convert if the workbook has multiple sheets.
- Confirm the header row is detected so keys are named correctly.
- Convert the sheet to JSON.
- Copy or download the JSON output.
Common use cases
- Importing spreadsheet data into a web or mobile application.
- Seeding a database from an Excel inventory or list.
- Building an API payload from business data held in Excel.
- Turning a budget or report sheet into structured data for code.
Frequently asked questions
How is the spreadsheet represented in JSON?
Each row becomes an object keyed by the column headers, usually collected into an array. This makes the data easy to loop over in code.
Can I convert a specific sheet only?
Yes. Choose the sheet you need from a multi-sheet workbook, and run the converter again for any others.
Are cell types preserved?
Values are carried across, and numeric or date cells can be represented appropriately depending on the options you choose.
Is my data uploaded anywhere?
No. Conversion runs in your browser, so your spreadsheet never leaves your device.
How do I turn JSON back into Excel?
Use the JSON to Excel converter to rebuild a spreadsheet from JSON data.