Excel to JSON Converter
Developer ToolsTurn XLSX, XLS or CSV sheets into clean JSON
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History
All history →Excel to JSON Converter — at a glance
Turn any spreadsheet into JSON for apps, APIs and databases.
How to use it — step by step
An Excel (.xlsx, .xls, .ods) or CSV file.
Add your file
Choose an Excel or CSV file. Large sheets are fine up to about 60 MB.
Pick the sheet
Leave blank for the first sheet, or type a sheet name or number. Keep "first row is the header" on to get named keys.
Press Convert
The sheet is read on your device and turned into JSON.
Copy or download
Copy the JSON or save it as a .json file.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
Which files can I convert?+
XLSX, XLS, XLSM, ODS and CSV. Password-protected workbooks cannot be opened.
What if my file has many sheets?+
Type the sheet name or its number. The result message tells you how many sheets the file has.
Are formulas converted?+
You get the last calculated value that was saved in the file, not the formula itself.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.