CSV to JSON Converter
Convert CSV spreadsheet data to structured JSON. First row becomes object keys.
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Convert CSV spreadsheet data into structured JSON in your browser. The first row becomes the object keys and each following row becomes an object — ideal for feeding spreadsheet data into APIs and code.
Frequently asked questions
How is CSV mapped to JSON?
The header row becomes the keys, and each subsequent row becomes a JSON object using those keys — producing an array of objects.
Does it handle quoted commas?
Yes — values wrapped in quotes can contain commas and line breaks, and they’re parsed correctly rather than split.
Is my data uploaded?
No — the conversion runs entirely in your browser.
Can I convert JSON back to CSV?
Yes — use the JSON to CSV tool to go the other direction.