CSV to JSON Converter

Convert CSV data to JSON format and JSON to CSV. Supports custom delimiters and header rows.

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About CSV to JSON Conversion

CSV (Comma-Separated Values) and JSON (JavaScript Object Notation) are two of the most common data interchange formats. This tool lets you convert between them instantly in your browser. When converting CSV to JSON with headers enabled, the first row of your CSV becomes the property names in the resulting JSON objects. All processing happens client-side -- no data is sent to any server.

Features

  • Bidirectional: Convert CSV to JSON or JSON to CSV
  • Custom delimiters: Support for comma, semicolon, tab, and pipe separators
  • Header row: Option to use the first row as field names
  • Pretty-printed JSON: Output is formatted with indentation for readability
  • Download: Save the converted output as a file