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How to Use

  1. 1

    Prepare Your JSON Data

    Ensure your JSON data is formatted as an array of objects. Each object will become a row in the CSV, and each property will become a column. You can paste JSON text or upload a JSON file.

  2. 2

    Configure Conversion Options

    Set your preferences: choose delimiter (comma, semicolon, tab), enable/disable header row, decide on nested object flattening, select array handling mode, and configure null value handling.

  3. 3

    Input JSON Data

    Paste your JSON array into the text input field or upload a JSON file (up to 10MB). The tool will validate the JSON syntax and show any errors.

  4. 4

    Convert to CSV

    Click "Convert to CSV" to process your data. The tool will transform the JSON into CSV format using your selected options and display comprehensive conversion statistics.

  5. 5

    Copy or Download

    Review the generated CSV output and conversion statistics. Use the "Copy CSV" button to copy to clipboard or "Download" to save as a .csv file for use in Excel, Google Sheets, or other applications.

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Frequently Asked Questions

How do I convert JSON to CSV online?
Simply paste your JSON array into the input field, configure your conversion options (delimiter, quote character, null handling, array handling), and click "Convert to CSV". The tool will automatically transform your JSON data into CSV format. You can then copy or download the result.
Can the converter handle nested JSON objects?
Yes! When "Flatten Nested Objects" is enabled, the converter automatically flattens nested objects using dot notation. For example, {"address": {"city": "NYC"}} becomes a column named "address.city" with the value "NYC". This preserves your data hierarchy in the CSV format.
What are the different array handling options?
The tool offers three array handling modes: 1) Separate Rows - creates a new row for each array item, 2) Comma Separated - joins array items with commas in a single cell, 3) JSON String - converts the entire array to a JSON string. Choose the method that best fits your use case.
What JSON formats are supported?
The converter works best with JSON arrays of objects, where each object represents a row in the CSV. It validates JSON syntax, checks for proper array structure, and provides detailed error messages if the format is incorrect. Maximum 10,000 rows per conversion.
Can I customize the CSV delimiter?
Yes! You can customize the delimiter (comma, semicolon, tab, or any single character), quote character, escape character, and null value handling. This ensures compatibility with different CSV standards and applications like Excel, Google Sheets, or custom parsers.
Is my JSON data secure and private?
Absolutely! All JSON to CSV conversion happens entirely in your browser using client-side JavaScript. No data is sent to our servers or stored anywhere. Your JSON data remains completely private and secure throughout the conversion process.
What is the maximum file size I can convert?
You can upload JSON files up to 10MB and convert arrays with up to 10,000 objects. This is sufficient for most use cases. For larger datasets, consider splitting them into smaller chunks for optimal performance.
How does null value handling work?
You can choose how to handle null or undefined values: 1) Empty string (blank cell), 2) "null" text (literal text "null"), or 3) Blank cell (completely empty). This flexibility ensures your CSV output matches your application's requirements.