CSV ↔ JSON Converter
Map CSV headers to JSON object keys, or flatten JSON arrays into CSV for Excel and Sheets.
100% private Instant processing Free forever
How it works
1
Paste CSV or JSON
2
Click Run (use Swap to reverse)
3
Copy the converted output
FAQ
Is CSV to JSON Converter free?+
Yes. wikawe data tools are free to use with no account required.
Is my data uploaded to a server?+
No. All formatting and conversion runs entirely in your browser — nothing is sent to our servers.
Do I need to install software?+
No. Open the tool in your browser, paste your data, and run — it works on desktop and mobile.
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