CSV / TSV to JSON

Turn tabular text into structured JSON without uploading the file to a conversion provider.

Choose fileProcessed locally in your browser when supported.

Handles real CSV

Quoted fields, escaped quotes, commas, tabs and semicolon-delimited files are parsed locally. Duplicate or blank headers are normalized.

10 MB input, 50,000 rows, 200 columns and 100,000 characters per cell.