CSV ↔ JSON Converter
Convert CSV data to JSON objects, or JSON arrays back to CSV. Instant, client-side.
JSON Output
Click Convert to see JSON output.
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Frequently Asked Questions
Comma (,), semicolon (;), tab (\t) and pipe (|). The "Auto" option detects the delimiter by counting occurrences per line. TSV (tab-separated) files from Excel are detected automatically.
Fields containing the delimiter or newlines should be wrapped in double quotes per RFC 4180. Escaped quotes inside fields (doubled "") are handled correctly. The parser is tolerant of inconsistent quoting.
An array of objects where each object represents a row. All unique keys across all objects become column headers. Missing keys are output as empty strings. Nested objects and arrays are JSON-stringified into a single cell.