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CSV to JSON Converter

Transform CSV data into clean JSON arrays or objects

CSV Input

JSON Output

About CSV to JSON Converter

Convert CSV (Comma-Separated Values) data into JSON (JavaScript Object Notation) format with full control over parsing options and output formatting. Perfect for data transformation, API integration, and web development workflows.

Key Features

  • Header Support: Automatically convert CSV headers to JSON object keys
  • Flexible Delimiters: Support for comma, semicolon, tab, and pipe delimiters
  • Pretty Printing: Format JSON with indentation for readability
  • Quote Handling: Properly parse quoted fields with embedded delimiters
  • File Upload: Upload CSV files directly or paste data
  • Instant Preview: Real-time conversion as you type

How to Use

  1. Input CSV Data: Paste your CSV data or upload a .csv file
  2. Configure Options: Choose delimiter, header settings, and formatting preferences
  3. Review Output: The JSON output updates automatically
  4. Copy or Download: Use the Copy or Download button to save your JSON

Example Conversion

CSV Input:

Name,Age,City
John,28,NYC
Jane,34,LA

JSON Output (with headers):

[
  { 
    "Name": "John",
    "Age": "28",
    "City": "NYC"
  },
  {
    "Name": "Jane",
    "Age": "34",
    "City": "LA"
  }
]

Common Use Cases

  • API Development: Convert CSV exports to JSON for REST APIs
  • Data Migration: Transform legacy CSV data to modern JSON format
  • Web Applications: Prepare data for JavaScript applications
  • Configuration Files: Convert CSV configs to JSON
  • Testing: Generate JSON test data from CSV fixtures

Privacy & Security

All conversions happen locally in your browser. Your CSV data is never uploaded to any server, ensuring complete privacy and security.