XLSXJSON
Free online converter. No signup, no watermark. Just drop your file.
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.xlsx files · Up to 10 files, 100MB each
How it works
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Drop .xlsx
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Get .json
About XLSX and JSON
What is XLSX?
XLSX is the modern Microsoft Excel spreadsheet format supporting formulas, charts, and multiple worksheets.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data interchange format, widely used in APIs and web applications.
FAQ
Is this free?
Yes, completely free. No signup, no watermarks, no hidden fees.
Is my file safe?
Files are converted on our servers and immediately deleted. We never store or share your files.
What's the maximum file size?
You can convert files up to 100MB.
How is the JSON structured?
Each row becomes a JSON object with column headers as keys. The result is an array of objects.
Are multiple sheets included?
The converter processes the first sheet by default, producing a clean JSON array.