CSV ↔ JSON Converter

Convert CSV to JSON and JSON to CSV with custom delimiters, header detection, and data preview. Upload files or paste data directly. Download results as .json or .csv.

What is CSV ↔ JSON Converter?

A CSV ↔ JSON Converter transforms data between two of the most common data formats. CSV (Comma-Separated Values) is used in spreadsheets and databases, while JSON (JavaScript Object Notation) is the standard for web APIs. This tool handles quoted fields, custom delimiters, and bidirectional conversion.

How to Use CSV ↔ JSON Converter

Choose your conversion direction (CSV→JSON or JSON→CSV). Paste your data or upload a file. Configure options like delimiter type and header row detection. Click Convert and download the result or copy it to clipboard.

FAQ

What delimiters are supported?

Comma, tab, semicolon, and pipe delimiters are supported. The tool also handles quoted fields with embedded delimiters correctly.

Can I convert TSV files?

Yes, select the Tab delimiter option, or upload a .tsv file — the tool auto-detects the delimiter from the file extension.

What JSON format is expected for JSON→CSV?

The input should be a JSON array of objects (e.g., [{"name":"John","age":30}]). Array of arrays is also supported.