CSV to JSON Converter
Converting between CSV and JSON
CSV (comma-separated values) is a simple tabular format used by spreadsheets and data exports, while JSON represents the same data as an array of objects with named fields. Converting between them is a common step when moving data from a spreadsheet into an application, or exporting API data for use in Excel.
When would I use this?
- Converting a spreadsheet export into JSON for use in a script or API.
- Turning a JSON array from an API response into CSV for import into Excel or Google Sheets.
- Quickly inspecting the structure of a CSV file as JSON objects.
How it works
Parsing correctly handles quoted fields containing commas or newlines, and conversion runs entirely in JavaScript in your browser — no file is uploaded to a server.
Frequently asked questions
Yes, when converting CSV to JSON, the first row is treated as column headers and used as the keys for each resulting JSON object.
Yes, fields wrapped in double quotes can safely contain commas, and escaped quotes ("") inside a quoted field are handled correctly.
Yes, the delimiter is configurable — useful for CSV exports from tools like Excel in locales that use semicolons instead of commas.
No, all parsing and conversion happens entirely in your browser using JavaScript.
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