CSV to JSON Converter

Convert CSV data to JSON format

CSV Input

JSON Output

Your JSON output will appear here

Conversion Summary

Convert your CSV to see the summary

How to use this tool
  1. Enter your CSV data by either:
    • Pasting CSV text in the textarea
    • Uploading a CSV file using the file upload option
  2. Configure conversion options:
    • CSV Delimiter: Select the character that separates values in your CSV (comma, semicolon, tab, pipe, or custom)
    • First row contains headers: Enable if your CSV has column headers in the first row
    • Trim whitespace: Remove leading/trailing spaces from values
    • Auto-detect numbers and booleans: Convert numeric strings to numbers and "true"/"false" to boolean values
  3. Click "Convert to JSON" to process your CSV data
  4. View the resulting JSON in the output panel
  5. Choose between formatted (pretty) or compact JSON output
  6. Use the "Copy" button to copy the JSON to your clipboard
  7. Use the "Download" button to save the JSON as a file
  8. Click "Reset" to clear all inputs and start over
  9. Use "Select another file" to choose a different CSV file

About CSV to JSON Conversion

Converting CSV to JSON transforms tabular data into a structured JavaScript Object Notation format. This is useful when:

  • Working with APIs that require JSON input
  • Integrating data with JavaScript applications
  • Making tabular data more accessible for hierarchical processing
  • Creating configuration files from spreadsheet data

Tips for Clean Conversion

  • Ensure your CSV data is properly formatted with consistent delimiters
  • Use quotes around text that contains your delimiter character
  • Make sure column headers (if used) are unique and valid JavaScript property names
  • For complex data, consider using the auto-detect option to properly type your values

Pro Tip

For very large CSV files, consider processing them in smaller chunks to avoid browser performance issues.