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CSV to JSON Converter

Convert CSV data to JSON format with delimiter options and preview

CSV Input

Delimiter:

Output:

Style:

First row is headerTrim whitespaceInfer types (numbers, booleans, null)

Ctrl+Enter to convert

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What is CSV to JSON Converter?

Free online CSV to JSON converter to paste CSV data and instantly convert it to a JSON array of objects.

Our free online CSV to JSON converter auto-detects delimiters (comma, tab, semicolon), handles quoted fields and escaped characters, and outputs clean, formatted JSON. Preview the parsed data in a table before exporting. Ideal for importing spreadsheet data into APIs, databases, or JavaScript applications. All processing happens in your browser - your data stays private. No signup required.

How to Use CSV to JSON Converter

1Paste your CSV data into the input area or upload a CSV file
2Select the delimiter if auto-detection doesn't match your data
3Preview the parsed data in the table view
4Copy or download the converted JSON output

Frequently Asked Questions

The tool reads the first row of your CSV as column headers and creates a JSON object for each subsequent row, mapping column names to values. The result is a JSON array of objects that's ready for use in APIs and applications.

The converter supports comma, semicolon, tab, and pipe delimiters. It can auto-detect the delimiter from your data, or you can select one manually if auto-detection gets it wrong.

Yes. The parser handles RFC 4180-compliant CSV data including double-quoted fields, escaped quotes, newlines within quoted strings, and Unicode characters.

There's no artificial limit. Since all parsing happens in your browser, performance depends on your device. Most modern devices handle tens of thousands of rows without issues.

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