Excel to JSON
Convert Excel workbooks (XLSX/XLS) to JSON. Supports single-sheet or all-sheets output.
About Excel to JSON
Excel to JSON turns XLSX and XLS workbooks into JSON — pick a single sheet or output all sheets together. Each row becomes a structured record, which is ideal for feeding spreadsheet data into APIs, JavaScript, or config files. It all happens in your browser, so the workbook stays on your device.
- Category
- convert
- Input
- Accepts: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet or application/vnd.ms-excel.
- Output
- Outputs: application/json.
- Cost
- Free, runs in your browser
- Memory
- low
Common uses
- Convert a sheet of records into a JSON array to seed a database or mock API
- Turn an Excel config tab into JSON your app can load at runtime
- Export all tabs of a workbook to JSON in one pass for a data migration
- Get spreadsheet rows into a shape a JavaScript front-end can map over directly
- Convert a legacy .xls export to JSON for a modern toolchain
- Hand a non-developer's spreadsheet to an engineer as ready-to-use JSON
Frequently asked questions
What does each row become?
Each row is converted into a structured JSON object, typically keyed by the column headers.
Can I convert every sheet at once?
Yes. The tool supports single-sheet output or all-sheets output.
Does it read old .xls workbooks?
Yes — both XLSX and the older XLS format are accepted.
Is the file uploaded to convert it?
No. Conversion runs in your browser and the workbook never leaves your device.
What about formulas and formatting?
JSON captures the cell values, so formulas resolve to their results and visual formatting is dropped.
Keywords
- excel
- xlsx
- xls
- json
- convert
- spreadsheet
- data