CSV ↔ JSON

Convert CSV to JSON or JSON to CSV with automatic delimiter detection, header row support and number/boolean typing. Free and private.

About this tool

Convert CSV to JSON and JSON to CSV. The delimiter can be detected automatically, quoted fields are handled, and numbers and booleans can be typed.

An array of objects (keys become columns) or an array of arrays. Nested values are written as JSON strings.

Missing fields are left out and extra fields are kept; the conversion does not stop.

Comma, semicolon, tab and pipe, or automatic detection.

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