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CSV ↔ JSON Converter

Convert between CSV and JSON formats. RFC 4180 compliant parsing with support for quoted fields, embedded commas, and newlines. All processing happens in your browser.

Delimiter:

CSV

JSON

What is CSV ↔ JSON Converter?

CSV ↔ JSON Converter transforms data between CSV (Comma-Separated Values) and JSON formats in both directions. The built-in parser is fully RFC 4180 compliant, correctly handling quoted fields, embedded commas, newlines, and escaped quotes.

How to Use

  1. Paste your CSV or JSON data into the corresponding panel
  2. Select the conversion direction (CSV → JSON or JSON → CSV)
  3. Choose your delimiter and header options
  4. Click Convert and copy or download the result

Use Cases

  • Converting spreadsheet exports (CSV) into JSON for API consumption
  • Transforming API JSON responses into CSV for analysis in Excel or Google Sheets
  • Migrating data between systems that use different formats
  • Quick data format conversion during development and debugging

Privacy & Security

All processing happens entirely in your browser. Your data is never sent to any server. You can verify this by checking the network tab in your browser's developer tools — you'll see zero outbound requests.

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