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Convert JSON to CSV Online — Free Converter

Converting JSON to CSV makes data accessible in spreadsheet applications like Excel, Google Sheets, and database import tools. Our free JSON to CSV converter handles nested objects (flattened with dot notation), supports custom delimiters, and runs entirely in your browser.

How are nested JSON objects handled?

Nested objects are flattened using dot notation: {"user":{"name":"Alice"}} becomes a column "user.name" with value "Alice". Arrays are converted to their JSON string representation.

What delimiters are supported?

Comma (,), semicolon (;), tab, and pipe (|). Choose the delimiter that matches your target application. CSV-to-JSON conversion auto-detects the delimiter.

What if objects have different keys?

A union of all keys is built. Missing keys get empty cells.

Is CSV output compatible with Excel?

Yes, standard CSV with proper escaping for commas and quotes.