CSV to JSON Converter
Convert CSV data into a JSON array of objects, or turn JSON back into CSV rows — in your browser, with no upload.
How to use the CSV to JSON Converter
- Paste your CSV or JSON data.
- Choose the conversion direction and delimiter.
- Copy the converted output.
About the CSV to JSON Converter
Spreadsheet exports and APIs rarely speak the same format, so this conversion sits between them constantly. The details that break naive converters are quoted fields containing commas, embedded line breaks and inconsistent column counts; those are handled here. The first CSV row is treated as the header and becomes the object keys in the JSON output.
Frequently asked questions
How are the JSON keys decided?
From the first row of the CSV, which is treated as the header row.
Does it handle commas inside quoted fields?
Yes. Quoted fields containing commas and line breaks are parsed correctly.
Is my data uploaded?
No. The conversion runs entirely in your browser.
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