Free XLSX to JSON Converter Online
Use this free XLSX to JSON converter to turn Excel sheets into a JSON array. Fast, private, and works in your browser.
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What is XLSX to JSON?
XLSX to JSON converts an Excel sheet into a JSON array of objects, using the header row as keys. It is useful for moving spreadsheet data into apps and APIs. Conversion runs in your browser.
How to use this tool
- Upload an Excel file.
- Choose the sheet.
- Click Convert to JSON.
- Copy or download the JSON.
Features
- Convert a sheet to a JSON array
- Header row becomes keys
- Pretty-printed output
- Copy or download the JSON
- Browser-based (no upload)
This tool runs in your browser. Your files and text are not uploaded to our servers, and we do not store your input.
Frequently asked questions
How are rows represented?+
Each row becomes an object keyed by the header row values.
Is my file uploaded?+
No. Conversion happens entirely in your browser.
What if there is no header row?+
You can choose to output arrays of values instead of keyed objects.
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