JSON to CSV Converter
Convert JSON arrays into CSV text locally for spreadsheets, imports and data cleanup.
CSV output
All conversion happens locally in your browser. The value you enter is not sent to a server, logged, stored, or transmitted.
How to use this tool
Enter the required values in the labeled fields. Results update in your browser and are announced for assistive technologies. Use realistic measurements and verify important outcomes before acting on them.
Formula or logic
The tool validates JSON, collects object keys, escapes quotes correctly and outputs CSV.
Example calculation
Example: [{name:'Box',qty:12}] becomes a CSV header and data row.
Frequently asked questions
What JSON shape is supported?
The browser-only version expects a JSON array of objects.
Does it upload JSON?
No. Conversion runs locally in your browser.
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