Transform a CSV file into a JSON array of objects. The first row becomes object keys, each subsequent row becomes an object. Quoted fields are fully supported.
100% Local
How to Use the CSV to JSON Converter
Paste CSV text into the input box. The first line must be a header row with column names. Click Convert to JSON and the output panel shows a pretty-printed JSON array. Each row becomes an object with keys from the header.
Supported CSV formats
Standard comma-separated values
Quoted fields containing commas or newlines
Escaped quotes (doubled quotation marks)
Empty cells — stored as empty strings
Features
Automatic header-to-key mapping
Full quoted-field and escaped-quote support
Handles multi-line fields within quotes
Outputs clean, formatted JSON for easy reuse
All processing runs locally in your browser. Your data is not uploaded to any server.