How do I convert JSON to CSV?

Paste your JSON data into the input box or upload a JSON file. Select 'JSON to CSV' mode and click Convert. The tool automatically detects array structures and flattens nested objects into CSV columns.

Can I convert CSV to JSON?

Yes! Select 'CSV to JSON' mode, paste your CSV data or upload a file, and click Convert. The first row is used as property names. The tool auto-detects delimiters (comma, semicolon, tab).

Does this tool handle nested JSON?

Yes, nested JSON objects are flattened using dot notation. For example, {user: {name: 'John'}} becomes a column 'user.name' with value 'John'.

What delimiter does the CSV use?

By default, the converter uses comma (,) as the delimiter. You can customize this in the settings to use semicolon, tab, or pipe delimiters.

Bidirectional Conversion

JSON ↔ CSV Converter

Convert JSON to CSV or CSV to JSON instantly. Auto-detects format, handles nested data, and supports custom delimiters.

JSON Input

Upload

CSV Output

Delimiter:

Include header row

Auto Detection

Automatically detects input format and delimiter. Supports comma, semicolon, tab, and pipe separators.

Nested JSON

Handles nested objects and arrays. Flattens complex structures into clean CSV columns using dot notation.

100% Private

All conversion happens in your browser. Your data never leaves your device—complete privacy guaranteed.

How to Convert JSON to CSV

Converting JSON to CSV is essential for data analysis, importing into spreadsheets, or sharing data with systems that don't support JSON.

Paste or upload your JSON data (array of objects works best)
Select delimiter - comma for Excel, semicolon for European locales
Click Convert - nested objects are flattened automatically
Download or copy your CSV file

JSON Structure Requirements

Best format: Array of objects with consistent keys

[
  {"id": 1, "name": "Alice", "email": "alice@example.com"},
  {"id": 2, "name": "Bob", "email": "bob@example.com"}
]

Each object becomes a row. Object keys become column headers.

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