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JSON-CSV Converter
Conversion
Convert between JSON and CSV with live side-by-side panes, header detection, and type inference. Paste either format and the other updates instantly in your browser.
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JSON-CSV Converter
JSON
CSV
Convert between JSON and CSV with live side-by-side panes. Paste a JSON array of objects on the left and CSV updates on the right, or paste CSV on the right and JSON updates on the left.
See moreSee less about the JSON-CSV Converter
Header detection and numeric type inference run in your browser.
Key features
- Clean interface
- Fast processing
- No signup required
- Works offline
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Quick answers for JSON-CSV Converter
Does it convert both ways?
Yes. Paste or type JSON on the left and CSV updates on the right; paste or type CSV on the right and JSON updates on the left. Incomplete text shows an error without wiping the other pane.
What JSON shape does it expect?
An array of objects. The keys of the first object become CSV headers; each object becomes one row.
Does it infer data types from CSV?
Yes. Numeric-looking cells become JSON numbers; everything else stays a string.
Is my data uploaded anywhere?
No. Conversion runs entirely in your browser.