CSV & JSON Converter
Convert CSV data to formatted JSON files, or JSON arrays back to CSV sheets. 100% free and client-side.
Your data never leaves your browser
CSV to JSON and JSON to CSV converter tool
Input CSV data
JSON Output
CSV & JSON Converter FAQs
How to convert CSV to JSON online?
Simply paste your raw CSV data or select a .csv file. The converter automatically parses the headers and maps rows into a structured JSON array, which you can preview and download.
Can I convert JSON back to CSV?
Yes. Switch to the JSON to CSV tab, paste a valid JSON array or upload a .json file. The tool parses the object keys as headers and converts the values into standard comma-separated lines.
What CSV delimiters are supported?
The converter supports standard comma-separated values (CSV) as well as semicolon-separated or tab-separated data (TSV) through automatic delimiter detection.