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Convert JSON arrays and objects into downloadable XLSX spreadsheets, repair invalid JSON, validate structure, and export clean Excel files directly in your browser.
Rows
0
Columns
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Input Size
0 B
Excel Size
0 B
Drop a JSON file here
or use the upload button inside the JSON editor.
What can be fixed automatically?
JSON Input
Excel Output Preview
This converter flattens JSON rows into spreadsheet columns, builds an XLSX workbook locally, and gives you a preview before download.
Turn API responses, logs, and exported JSON records into spreadsheet rows for review.
Share structured JSON data with non-technical teammates as a downloadable XLSX file.
Preview flattened columns before opening the generated workbook in Excel or Sheets.
Files generated here include hidden metadata so JSONKit can restore the original JSON later.
The converter includes an advanced JSON repair flow that helps identify, explain, and automatically fix common JSON formatting problems before creating the Excel file.
When JSON repair is successful, the tool displays the original malformed JSON and the repaired JSON side by side. This helps developers verify every change before converting the data to Excel.
Before Repair
{
name: "John",
age: 30,
}After Repair
{
"name": "John",
"age": 30
}Many JSON to Excel conversions fail because the input contains malformed JSON. This tool can repair common syntax issues such as missing quotes, single quotes, trailing commas, duplicate commas, JavaScript comments, missing commas, broken arrays, and unbalanced braces or brackets.
Use it as a JSON syntax checker, malformed JSON repair tool, JSON validator, and JSON to Excel converter in one workflow.