JSON to CSV Converter

Convert a JSON array of objects into CSV.

Paste JSON

Files never leave your device - everything runs entirely in your browser.

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How it works

1
Paste a JSON array of objects

e.g. [{"name":"Alice","age":30}].
2
Converted instantly

Object keys become the CSV column headers.
3
Copy the CSV

Ready to open in a spreadsheet.

FAQ

What if my objects have different keys?: The header row is built from the first object's keys - keep your objects consistent for a clean result.
Does this tool upload my JSON anywhere?: No - the conversion runs entirely in your browser.