Does it handle quoted fields?

Yes! Fields containing commas, quotes, or newlines that are properly quoted (per RFC 4180) are handled correctly.

Does it auto-detect data types?

Yes, the converter attempts to detect numbers and booleans in your CSV data and converts them to their JSON equivalents rather than leaving everything as strings.

What delimiter does it support?

The converter supports comma-separated values by default. Tab-separated values (TSV) are also detected automatically.

How are headers handled?

The first row is treated as headers and used as JSON object keys. Each subsequent row becomes a JSON object in the output array.

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CSV to JSON Converter

Convert CSV data to JSON arrays

100% client-side — your data never leaves your browser

Ctrl+Enter to process

Input

Output

Output will appear here...

Privacy guarantee:Unlike jsonformatter.org which leaked 80,000+ files in November 2025, JSONShield processes everything in your browser. Zero network requests with your data. Open your browser DevTools (Network tab) to verify — you'll see zero outbound requests containing your JSON.

How to Use CSV to JSON Converter Online

Paste or type your JSON data into the input panel above
The result appears instantly in the output panel — or click the process button
Click "Copy" to copy the result to your clipboard

Convert CSV data to JSON arrays. All processing happens 100% in your browser — your data never leaves your device.

Frequently Asked Questions

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