Free Online CSV to JSON Converter
Convert CSV data to JSON format online with custom delimiters, automatic type detection, and pretty print options. Handle quoted fields and headers easily. Free, no signup required.
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What is CSV to JSON Converter?
CSV to JSON Converter is a free online tool that transforms CSV (Comma-Separated Values) data into JSON format. CSV is widely used in spreadsheets and databases, while JSON is the standard format for web APIs and modern applications. This tool makes it easy to convert your tabular data into a format that can be used in JavaScript, Python, and other programming environments.
How to Use CSV to JSON Converter
- Paste your CSV data into the input area on the left
- Select your delimiter (comma, semicolon, or tab)
- Enable 'First Row as Headers' if your CSV has column names
- Click 'Convert' and copy or download your JSON
CSV to JSON Features
- Convert CSV to JSON arrays instantly
- Support for multiple delimiters (comma, semicolon, tab)
- Automatic type inference (numbers, booleans, null)
- Handle quoted fields with embedded delimiters
- Pretty print or compact JSON output
CSV to JSON FAQ
How does the tool handle quoted fields?
The converter properly parses CSV fields enclosed in double quotes, including fields that contain the delimiter character or line breaks.
Does it automatically detect data types?
Yes! The tool automatically converts numeric values to numbers, 'true'/'false' to booleans, and empty values to null. Text values remain as strings.
Is my data secure?
Absolutely! All processing happens directly in your browser. Your CSV data is never sent to any server.