Does the first row have to be headers?

Yes. The converter uses the first row as the property (key) names for the JSON objects. If your CSV does not have headers, add a header row before converting.

How does it handle quoted fields with commas?

Fields surrounded by double quotes that contain commas are treated as a single field value — the comma inside the quotes is not treated as a delimiter.

Are numeric values converted to numbers?

Yes. If a field's value parses as a valid number, it is stored as a JSON number rather than a string. To keep all values as strings, this can be disabled.

What delimiters are supported?

Comma (,), semicolon (;), and tab characters are supported. European CSV files commonly use semicolons; TSV (tab-separated) files use tabs.

CSV to JSON Converter

Converts a CSV file's content into a JSON array of objects, using the first row as property names. Handles quoted fields containing commas, empty values, and numeric type detection. Supports comma, semicolon, and tab delimiters.

CSV Input

Delimiter

The quickest way to turn spreadsheet data into a JSON array ready for APIs, databases, or JavaScript applications.

Frequently Asked Questions

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