CSV to JSON Converter

Q: How does the CSV to JSON conversion work?

The first row of your CSV is used as JSON object keys. Each subsequent row becomes a JSON object. Numbers are automatically detected and converted.

Q: Is my data sent to a server?

No. All conversion happens locally in your browser. Your data never leaves your device.

Convert CSV data to JSON format instantly. Free online tool with auto-detection of delimiters, headers, and data types. No upload needed.

CSV Input

JSON Output

Minify

How to Convert CSV to JSON

Paste your CSV data in the left panel and get JSON output instantly in the right panel. The first row is treated as headers, which become JSON object keys.

Features

Auto-detection of numbers vs strings
Support for comma, tab, semicolon, and pipe delimiters
Minified or pretty-printed output
Handles quoted values with commas

Frequently Asked Questions

How does the CSV to JSON conversion work?

The first row of your CSV is used as JSON object keys (headers). Each subsequent row becomes a JSON object with those keys. Numbers are automatically detected and converted from strings to numeric values.

Can I use delimiters other than commas?

Yes. The tool supports comma, tab, semicolon, and pipe delimiters. Select the appropriate delimiter from the dropdown menu above the input field to match your data format.

Is my data sent to a server?

No. All conversion happens locally in your browser using JavaScript. Your data never leaves your device, making it safe to use with sensitive or confidential information.