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JSON to CSV Converter

Convert a JSON object or array of objects into CSV for spreadsheets and data analysis.

InputProcessed locally
Result
Ready.

JSON to CSV

JSON and CSV represent tabular data differently. This converter turns record-oriented JSON into CSV columns and uses dot notation for nested object properties.

Quick answer

Convert arrays of JSON records into spreadsheet-friendly CSV with flattened nested fields. The core operation is designed for quick browser-based use without an account.

How to use this tool

  1. Provide an array of records
  2. Run the conversion
  3. Inspect the column names
  4. Then copy or download the csv.

Common errors and things to check

CSV is tabular, so deeply nested structures and arrays may need review after conversion.

Common use cases

Privacy and local processing

Core processing for this tool is designed to happen in your browser. The page does not intentionally upload ordinary tool input to a DataToolBase server. Do not paste passwords, private keys, access tokens, personal data, or other sensitive secrets unless you have verified the security requirements for your use case.

Frequently asked questions

What JSON works best?

An array of objects with reasonably consistent fields is the most predictable input.

How are nested fields represented?

Nested object properties are flattened with dot-separated column names.

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