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CSV to JSON Converter

4.62(8 ratings)

Convert CSV files to JSON arrays online. Free tool to transform comma-separated values (CSV) into JSON format. Support for custom delimiters, headers, and data types. No installation needed.

CSV Input


Our CSV to JSON converter transforms CSV data into JSON format instantly. Perfect for API integration, data analysis, or format migration. The conversion happens entirely in your browser, ensuring your data stays private and secure.

Frequently Asked Questions

How do I convert CSV to JSON or turn CSV into JSON?

Simply paste your CSV data into our converter, select your delimiter (comma, semicolon, or tab), choose whether your first row contains headers, and get your JSON array output instantly. Our tool automatically detects data types and handles special characters.

Can I convert CSV files to JSON?

Yes! You can either drag and drop your CSV file or paste its contents into our converter. The tool will instantly convert your CSV file to JSON format while preserving data types and structure. It works with both small and large CSV files, and all processing happens locally in your browser.

What CSV formats are supported for JSON conversion?

Our converter supports standard CSV formats with customizable delimiters (comma, semicolon, tab). The first row can be used as headers to create JSON property names, or you can use automatic column names. The tool handles quoted values, special characters, and different data types.

How are data types handled in the CSV to JSON conversion?

The converter automatically detects and converts data types. Numbers are converted to numeric values, 'true'/'false' to booleans, empty or 'null' values to null, and other values remain as strings. This ensures your JSON output has the correct data types.

Is my data secure when using the CSV to JSON converter?

Yes, absolutely. All conversion happens directly in your browser - no data is sent to any server or stored anywhere. Your CSV data remains completely private and secure.

How does the CSV to JSON converter handle headers?

You can choose whether your CSV's first row contains headers. If enabled, these headers become JSON property names. If disabled, the tool automatically generates column names (column1, column2, etc.). Headers are automatically cleaned to create valid JSON property names.