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CSV ↔ JSON Converter is a free online tool that converts CSV data to a JSON array and converts JSON arrays back to CSV format. No installation required — runs entirely in your browser.

CSV (Comma-Separated Values) and JSON (JavaScript Object Notation) are two of the most common data formats. CSV is used in spreadsheets and databases, while JSON is the standard for REST APIs. This tool converts between the two formats, making data integration and migration easy.

CSV ↔ JSON Converter

Convert CSV to JSON or JSON array to CSV instantly in your browser.

How to Use

  1. Paste your CSV or JSON data into the input field
  2. Click 'CSV → JSON' to convert CSV to a JSON array
  3. Or click 'JSON → CSV' to convert a JSON array back to CSV
  4. Copy the converted output as needed

Example

Input

name,age
Alice,30
Bob,25

Output

[
  {
    "name": "Alice",
    "age": "30"
  },
  {
    "name": "Bob",
    "age": "25"
  }
]

FAQ

What CSV format does this tool support?
This tool supports standard comma-separated CSV with a header row. The first row is treated as the field names.
Is this tool free?
Yes, it is completely free with no registration required.
Does this tool run in the browser?
Yes, all conversion happens locally in your browser with no data sent to a server.

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