CSV to JSON Converter
Convert CSV spreadsheet data to structured JSON. First row becomes object keys.
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.