Spreadsheet & Data Tools

Clean, fast converters for spreadsheet and data formats. Convert CSV to Excel, Excel to CSV and JSON to CSV with previews before you download.

CSV to ExcelConvert CSV files to Excel (.xlsx) without breaking numbers or leading zeros.

Excel to CSVExport Excel worksheets to CSV with your choice of delimiter.

JSON to CSVFlatten a JSON array into CSV columns.

CSV to JSONConvert CSV rows into a JSON array of objects.

Guides

CSV vs JSON: Differences and How to Convert Between Them