CSV to JSON Converter Online
Convert CSV data to a JSON array. The header row becomes the JSON keys. Free and browser-based.
How to Use
- Enter or paste CSV data in the left pane
- Click the 'Convert' button
- The JSON result appears in the right pane
- Click 'Copy' to copy the result to clipboard
FAQ
- Is a header row required?
- Yes. The first row is used as key names for the JSON objects.
- Is my data sent to a server?
- No. All processing happens in your browser. No data is sent externally.
- Are delimiters other than commas supported?
- Standard CSV (comma-separated) is supported. TSV (tab-separated) is automatically detected.
- How do I copy the conversion result?
- Click the 'Copy' button in the right pane to copy the result to your clipboard.
- Are multibyte characters like Japanese handled correctly?
- Yes. CSV encoded in UTF-8 is handled correctly, including multibyte characters.
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Update History
Last Updated: 2026-02-21
- 2026-02-21 Initial release