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JSON to CSV Converter – Convert JSON Data to CSV Free

Convert JSON arrays to CSV format online instantly. Auto-detects keys, supports nested objects, custom delimiters, and live table preview—download your CSV file free.

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About This Tool

Learn what makes this tool special

Our JSON to CSV Converter transforms JSON data into a clean CSV spreadsheet format that can be opened in Excel, Google Sheets, or any spreadsheet tool — in seconds.

When to Convert JSON to CSV


- Data analysis: CSV is easier to open and analyze in Excel or Google Sheets
- Reporting: export API data to spreadsheets for non-technical stakeholders
- Database import: many databases and CRMs accept CSV for bulk data import
- ETL pipelines: CSV is a universal data exchange format

What Types of JSON Are Supported


- JSON arrays of objects (most common API response format)
- Flat JSON objects
- Nested objects (flattened to dot-notation columns)

Example


``json
[{"name": "Alice", "age": 30}, {"name": "Bob", "age": 25}]
`
Becomes:
`
name,age
Alice,30
Bob,25
``

Output Options


- Comma-delimited (standard CSV)
- Tab-delimited (TSV)
- Custom delimiter
- Include or exclude header row

Key Features

What makes this tool special

  • Convert JSON arrays to properly formatted CSV
  • Column headers auto-detected from JSON keys
  • Nested object flattening (dot-notation)
  • Comma, tab, or custom delimiter options
  • Download as .csv file
  • Copy output to clipboard
  • Validates JSON before conversion
  • Shows error messages for invalid JSON
  • No sign-up required
  • 100% browser-based
  • Free with no limits

Quick Guide

Master this tool in seconds

  1. 1
    Paste your JSON data (array of objects) into the input field
  2. 2
    Select delimiter preference (comma, tab, or custom)
  3. 3
    Click 'Convert to CSV'
  4. 4
    Preview the CSV output in the result area
  5. 5
    Click 'Download CSV' or 'Copy to Clipboard'
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Common Questions

Everything you need to know

Q.What JSON format does this converter support?

A.

Arrays of objects ([ {...}, {...} ]) are best supported. Flat single objects are also handled. Deeply nested arrays may require preprocessing.

Q.Will all JSON fields become CSV columns?

A.

Yes — all unique keys across all objects in the array become column headers.

Q.What happens with nested objects?

A.

Nested objects are flattened using dot notation (e.g., address.city becomes a column named 'address.city').

Q.Can I open the CSV in Excel?

A.

Yes — download the CSV file and open it directly in Microsoft Excel or Google Sheets.

Q.What if my JSON is invalid?

A.

The tool validates your JSON and shows a clear error message with the location of the syntax issue.

Q.Is my data sent to a server?

A.

No — all conversion runs in your browser. Your data never leaves your device.

Q.Is this free?

A.

Yes — completely free with no sign-up.

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