CSV to JSON Converter

Convert CSV data to JSON format instantly. Perfect for developers, data analysts, and API integrations.

Recent Conversions

About CSV to JSON Conversion

CSV (Comma-Separated Values) and JSON (JavaScript Object Notation) are both popular data interchange formats. CSV is simple and widely used for tabular data, while JSON is more structured and commonly used in web applications and APIs.

Key features of our converter:

  • Supports various delimiters (comma, semicolon, tab, pipe)
  • Automatic header detection and parsing
  • Number parsing and type detection
  • Minified or formatted JSON output
  • Data preview and validation
  • Completely free with no limitations

Frequently Asked Questions

CSV to JSON conversion is the process of transforming data from CSV (Comma-Separated Values) format to JSON (JavaScript Object Notation) format. CSV is a simple text format for storing tabular data, while JSON is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. This conversion is commonly used when moving data between different systems or when preparing data for web APIs.

Our converter supports several common CSV delimiters:
  • Comma (,) - The most common CSV delimiter
  • Semicolon (;) - Often used in European countries
  • Tab (\t) - Tab-separated values (TSV)
  • Pipe (|) - Pipe-separated values
You can select the appropriate delimiter from the options above the input area. The tool will automatically detect the delimiter in most cases, but you can manually specify it for better accuracy.

When the "First row contains headers" option is enabled (default), the converter uses the first row of your CSV data as property names in the JSON output. Each subsequent row becomes an object with these properties. If this option is disabled, the converter will generate an array of arrays instead of an array of objects, and the first row will be treated as data rather than headers. This is useful when your CSV doesn't have a header row.

Absolutely! All conversions happen entirely in your browser. Your CSV data is never sent to any server, ensuring complete privacy and security. The tool works offline once loaded, and no data is stored or transmitted. Your sensitive data remains on your computer throughout the entire conversion process.

While this tool specifically converts CSV to JSON, you can use the "Swap" button to attempt converting JSON back to CSV. However, note that the conversion from JSON to CSV is not as comprehensive as specialized JSON to CSV converters. For complex JSON documents with nested structures, consider using a dedicated JSON to CSV converter for optimal results.