CSV to JSON Converter

Convert CSV data to JSON array format with table preview

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JSON output will appear here

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What is CSV to JSON Conversion?

CSV to JSON conversion transforms flat, tabular data from CSV (Comma-Separated Values) format into structured JSON (JavaScript Object Notation). The first row of the CSV is used as keys for the JSON objects, and each subsequent row becomes a JSON object in the resulting array.

This is especially useful when you need to use spreadsheet data in web applications, APIs, or any system that expects JSON input.

How to Use This Tool

  1. Paste your CSV data into the input area, or click Upload to load a .csv file.
  2. Click Convert to JSON. The first row of your CSV will be used as property names.
  3. Preview the parsed data in the Table tab to verify column mapping.
  4. Copy the JSON output or download it as a .json file.

Frequently Asked Questions

What if my CSV uses semicolons instead of commas?
The tool uses Papa Parse, which automatically detects the delimiter used in your CSV file. It supports commas, semicolons, tabs, and pipes as delimiters without any configuration needed.
How are data types handled in the conversion?
By default, all CSV values are converted as strings in JSON. Numbers, booleans (true/false), and empty values are automatically detected and converted to their appropriate JSON types when dynamic typing is enabled.