Kerncode

JSON to CSV Converter Online

100% client-side No uploads Instant export

Convert JSON arrays (or objects) to CSV instantly. Supports nested objects (flattened), custom delimiters, quoting, and one-click download.

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Input JSON
Tip: best input is an array of objects. Nested objects are flattened using dot notation (e.g. user.name).
Settings & Output
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Note: This tool converts JSON to CSV in your browser only. Large JSON files may slow down your tab.

How to use the JSON to CSV Converter

Convert JSON data into CSV format directly in your browser. Paste your JSON, choose the delimiter and options, and export your CSV file instantly.

  1. Paste JSON (preferably an array of objects)
  2. Select delimiter and formatting options
  3. Click convert to generate the CSV
  4. Preview the result
  5. Copy or download the CSV file

Everything runs client-side. Your data never leaves your browser.

JSON to CSV Examples

Simple JSON array

[
  {"name":"John","age":28},
  {"name":"Anna","age":32}
]

Nested JSON

[
  {
    "user":{"name":"Ana","email":"ana@mail.com"},
    "plan":"Pro"
  }
]

Nested fields are flattened automatically (e.g. user.name, user.email).

What is JSON to CSV conversion?

JSON to CSV conversion transforms structured JSON data into a table-like CSV format. This makes the data easier to import into spreadsheets, databases, and analytics tools.

  • Convert structured data into tabular format
  • Export for Excel or Google Sheets
  • Prepare datasets for analysis
  • Share data in a universal format

Where JSON to CSV is used

  • Data analysis workflows
  • API response processing
  • Reporting and dashboards
  • Spreadsheet imports
  • ETL pipelines

Frequently Asked Questions

Is this JSON to CSV tool secure?
Yes. The conversion runs entirely in your browser. No data is uploaded or stored.
Does it support nested JSON?
Yes. Nested objects are flattened automatically using dot notation.
What delimiter should I use?
Comma is standard, but semicolon or tab may work better depending on your spreadsheet settings.
Can I convert large JSON files?
Yes, but performance depends on your browser and device memory since processing happens locally.

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