Excel to CSV without opening Excel

Colleagues send .xlsx; your scripts, imports and databases want CSV. Convert directly in the browser-to-server pipeline — no Excel license, no Google Sheets detour, no upload to a sketchy converter farm.

✓Reads the first worksheet of any .xlsx workbook
✓Cleaning options fix the messy sheets people actually send
✓Also outputs TSV and JSON when CSV isn't quite right

Drop a CSV, TSV, JSON or Excel file here

Processed in memory, never stored. Max 20 MB.

Also made for

CSV → JSON
JSON → Excel
Cleaning messy files