What CSV / JSON Converter does
CSV is convenient for spreadsheets while JSON is convenient for APIs and application code. This converter handles quoted delimiters and line breaks, lets you choose header behavior, and keeps the conversion entirely inside the browser.
Common uses
- Turn spreadsheet exports into JSON for API tests
- Create CSV files from arrays of JSON objects
- Convert comma-, tab-, or semicolon-delimited data
Privacy and limitations
CSV and JSON are parsed only in this browser tab. Remove secrets before sharing any downloaded result.
Validate important output in the actual language, database, or target platform.
Frequently asked questions
Are commas inside quoted cells supported?
Yes. The parser handles quoted fields, escaped double quotes, delimiters, and line breaks inside quoted values.
How are JSON values represented in CSV?
Objects and arrays are serialized as compact JSON strings; null becomes an empty cell.
Can it infer numbers and booleans?
Optional value inference converts unquoted true, false, null, and numeric cells while preserving other text.