CSV to JSON Converter
Convert CSV to JSON instantly. Auto-detects delimiters (comma, semicolon, tab). Parse numbers automatically. Free, private, browser-based.
JSON output appears here...About this tool
Convert CSV data to JSON format. The tool auto-detects your delimiter (comma, semicolon, or tab), uses the first row as JSON keys, and handles quoted fields containing commas or newlines correctly.
All processing happens in your browser. No data is sent to any server.
Frequently Asked Questions
What delimiters are supported?
The tool auto-detects comma, semicolon, and tab delimiters. The first row is used as JSON keys (headers).
Does it handle quoted fields?
Yes. Fields enclosed in double quotes are parsed correctly, including fields containing commas or newlines.
Can it parse numbers?
Yes. Toggle Parse Numbers to automatically convert numeric strings to JSON numbers instead of keeping them as strings.