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JSON to CSV Converter

Convert JSON to CSV or CSV to JSON. Bidirectional data converter with custom delimiter support for spreadsheet import and export.

How to Convert JSON to CSV or CSV to JSON

  1. Select your conversion mode (JSON to CSV or CSV to JSON)
  2. Choose a delimiter (comma, semicolon, or tab)
  3. Paste your JSON array or CSV data into the input field
  4. Click Convert to transform your data
  5. Copy the result or download as a file

Features

  • Bidirectional Conversion - Convert JSON to CSV for spreadsheet import, or CSV to JSON for data processing
  • Custom Delimiters - Support for comma, semicolon, and tab-separated values
  • Smart Type Detection - Automatically detects numbers, booleans, and null values when converting CSV to JSON
  • Handles Complex Data - Properly escapes special characters, quotes, and nested objects
  • Swap Function - Quickly swap output to input for round-trip conversion

JSON to CSV Conversion

  • Input must be a JSON array of objects
  • All unique keys become CSV column headers
  • Nested objects are serialized as JSON strings
  • Missing values become empty cells
  • Special characters (quotes, delimiters, newlines) are properly escaped

CSV to JSON Conversion

  • First row is treated as headers (column names)
  • Each subsequent row becomes a JSON object
  • Numbers are automatically parsed from strings
  • Boolean values (true/false) and null are detected automatically
  • Quoted values with embedded delimiters are handled correctly

Common Use Cases

  • Export API response data to Excel or Google Sheets
  • Import spreadsheet data into web applications
  • Convert database exports for data analysis
  • Prepare data for bulk imports and migrations
  • Transform configuration files between formats
  • Works entirely in your browser - no data is sent to any server