CSV to JSON Converter

Convert CSV data to JSON format instantly in your browser

100% private — files stay in your browser

How to Use

  • Paste your CSV data in the left box or click "Paste" to paste from clipboard
  • Check "First row is header" if your CSV has column names in the first row
  • Click "Convert" to generate JSON
  • Click "Copy" to copy the JSON output to your clipboard
  • All conversion happens in your browser — your data never leaves your device

CSV to JSON

CSV (Comma-Separated Values) is a simple, spreadsheet-friendly format. JSON is a structured data format perfect for APIs and web applications.

With header row checked: Creates an array of objects where each row becomes an object with column names as keys.

With header row unchecked: Creates a simple array of arrays where each row is an array of values.

The converter handles quoted fields, commas within values, different line endings, and special characters automatically.