CSV to JSON Converter

Convert CSV data to JSON format instantly. Preview as table. Also supports JSON to CSV.

How to use

  • Paste your CSV data into the input box, or click Load Sample to try an example.
  • Choose the delimiter that your CSV uses (comma, semicolon, tab, or pipe).
  • Check First row is header to use column names as JSON keys.
  • Click Convert to generate JSON. A table preview shows the first 10 rows.
  • Switch to JSON → CSV tab to reverse the conversion.
  • Copy the output or download it as a file.

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About this Csv To Json

Use this free CSV to JSON converter to turn spreadsheet-style rows into structured JSON. It is useful for imports, prototypes, API payloads, automation workflows, and quick data cleanup. No signup is required, and the tool works on phones, tablets, and desktop browsers.