Excel To JSON Converter
Read an XLSX workbook with the pinned local SheetJS library and convert the selected data.
Open toolUse the union of object keys as columns; nested values become JSON text. At most 10,000 records and 100 columns.
Enter the inputs, then select Convert JSON table.
Result will appear here
Use the union of object keys as columns; nested values become JSON text.
At most 10,000 records and 100 columns. Missing fields become blank cells; null stays null. Spreadsheet cells are written as text, including formula-like strings.
Start with your own input.
Select Convert JSON table. Review a single-sheet XLSX workbook, then download the result file.
To display a JSON record list, start with json array of objects. Use the union of object keys as columns; nested values become JSON text.

To document structured records, start with json array of objects. At most 10,000 records and 100 columns.

To prepare a tabular fixture, start with json array of objects. Review a single-sheet XLSX workbook, then download the result file.

Check what the output means.
A single-sheet XLSX workbook. Use the union of object keys as columns; nested values become JSON text.
At most 10,000 records and 100 columns. Missing fields become blank cells; null stays null. Spreadsheet cells are written as text, including formula-like strings.

Check the format before processing.
At most 10,000 records and 100 columns. Missing fields become blank cells; null stays null. Spreadsheet cells are written as text, including formula-like strings.
Inputs and results are handled in this browser.

Read an XLSX workbook with the pinned local SheetJS library and convert the selected data.
Open toolParse quoted CSV and map unique headers to object keys.
Open toolRead simple KEY=value or export KEY=value lines; strip matching outer quotes and keep each value as a string.
Open toolChoose another tool for your next calculation, conversion, or text task.
Turn one .xlsx worksheet into an escaped HTML table. Preview displayed cell values and download the table without executing cell markup or recalculating formulas.
Open toolExport one .xlsx worksheet as row-based XML. Header names remain attributes, cell text is escaped, and formula values use the workbook’s cached results.
Open toolParse strict JSON and serialize it with the chosen indentation.
Open toolParse strict JSON and serialize compact JSON without indentation.
Open toolReview a single-sheet XLSX workbook, then download the result file.
Answers about using JSON To Excel Converter and understanding its results.
At most 10,000 records and 100 columns. Missing fields become blank cells; null stays null. Spreadsheet cells are written as text, including formula-like strings.
Yes. Download the result file after processing. Text results also have Copy result. Processing uses local browser code; no account is required.