JSON to CSV Converter

Convert JSON arrays and nested objects into clean, exportable CSV spreadsheets.

Processing Architecture: Client-Side (Processed locally in your web browser with zero server uploads)

How to Use JSON to CSV Converter

  1. Step 1: Paste JSON

    Enter your JSON array `[{col1: val1, col2: val2}]`.

  2. Step 2: Flatten Options

    Configure delimiter and nested object key handling (e.g. `user.address.city`).

  3. Step 3: Download CSV

    Export the spreadsheet directly as `.csv`.

Key Features & Capabilities

  • Automatic flattening of nested JSON objects
  • Auto-generates header row from object keys
  • Download directly to CSV file

Frequently Asked Questions

What happens to nested JSON objects?

They need to be flattened into table columns. PixelToFile's converter supports nested key handling rather than treating the entire object as one opaque value.

What should I check before opening the CSV in a spreadsheet?

Review the headers, nested fields, and any records with missing properties to make sure the resulting table matches what you intended.

Does CSV preserve the full structure of JSON?

Not always. CSV is flat, so information about arbitrary nesting or complex arrays may need to be represented using columns or flattened paths.

Can it handle missing keys across objects?

Yes, if some objects in the JSON array lack certain properties, they are cleanly rendered as empty cells in the corresponding CSV row.

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