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JSON to CSV Converter

Convert data between JSON and CSV formats. Supports arrays of objects.

JSON

CSV

What is JSON to CSV Conversion?

JSON to CSV conversion is the process of transforming JavaScript Object Notation (JSON) data into Comma Separated Values (CSV) format. This is one of the most common data transformation tasks for developers, data analysts, and anyone working with APIs and spreadsheets.

JSON is the standard format for web APIs and modern applications, while CSV is the universal format for spreadsheets and data analysis tools. Converting between them allows you to bridge the gap between web services and traditional data tools like Excel, Google Sheets, or database import utilities.

How to Convert JSON to CSV

  1. Paste your JSON array of objects into the left input box.
  2. Click the JSON to CSV button.
  3. Copy the generated CSV data from the right box.
  4. Save the CSV or import it directly into Excel or Google Sheets.

How to Convert CSV to JSON

  1. Paste your CSV data (with headers in the first row) into the right input box.
  2. Click the CSV to JSON button.
  3. Copy the generated JSON array from the left box.
  4. Use the JSON in your application or API.

Example: JSON to CSV

Input JSON:

[
  {"name": "Alice", "age": 30, "city": "New York"},
  {"name": "Bob", "age": 25, "city": "San Francisco"}
]

Output CSV:

name,age,city
Alice,30,New York
Bob,25,San Francisco

Key Features

  • Bidirectional Conversion: Easily switch between JSON and CSV formats in both directions.
  • Privacy-Focused: All conversions happen locally in your browser. No data is sent to any server.
  • Header Support: Automatically handles CSV headers and JSON object keys.
  • Special Character Handling: Properly escapes commas, quotes, and newlines.
  • Fast Processing: Instant conversion with no server delays.

Common Use Cases

  • Exporting API responses to Excel or Google Sheets
  • Converting spreadsheet data for web applications
  • Data migration between different systems
  • Creating CSV reports from JSON logs
  • Importing JSON data into databases that accept CSV

Related Tools

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Learn More

Check out our guides for more tips:

Frequently Asked Questions

What is JSON to CSV conversion?

JSON to CSV conversion transforms JavaScript Object Notation (JSON) data into Comma Separated Values (CSV) format. This is useful for importing API data into spreadsheets like Excel or Google Sheets, or for data analysis tools that prefer tabular formats.

Is my data safe when converting?

Yes, absolutely. All JSON to CSV conversion happens entirely in your browser using JavaScript. No data is ever sent to our servers or any third party. Your data remains completely private and secure on your device.

What JSON format is supported?

This tool works best with JSON arrays of objects, where each object has the same keys. For example: [{"name":"John","age":30},{"name":"Jane","age":25}]. The keys become CSV column headers, and each object becomes a row.

Can I convert CSV back to JSON?

Yes! This tool supports bidirectional conversion. You can convert CSV to JSON just as easily. Make sure your CSV has headers in the first row, and the tool will use those as JSON object keys.

What if my JSON has nested objects?

Nested objects will be flattened or converted to strings. For complex nested structures, you may need to flatten your JSON first. Simple nested objects work fine, but deeply nested structures may not convert perfectly to CSV's flat table format.

How do I handle special characters in CSV?

The converter automatically handles special characters like commas, quotes, and newlines by wrapping values in quotes when necessary. This follows the standard CSV format specification (RFC 4180).

Can I use this for large datasets?

Yes, the tool can handle reasonably large datasets since processing happens locally in your browser. However, very large files (10MB+) may slow down depending on your device's performance. For massive datasets, consider using command-line tools.

What's the difference between JSON and CSV?

JSON is a hierarchical data format that supports nested structures and different data types. CSV is a flat, tabular format where data is organized in rows and columns. CSV is simpler and widely supported by spreadsheet applications, while JSON is more flexible and commonly used in APIs.

Do I need to format my JSON first?

No, the tool accepts both minified and formatted JSON. However, if your JSON has syntax errors, you should fix those first using a JSON validator or formatter before attempting conversion.

Can I download the converted file?

Yes! After conversion, you can copy the output and save it as a .csv or .json file. Most browsers also allow you to use the download button if the tool provides one.