CSV/TSV Spreadsheet Cleaner

Normalize cell whitespace, remove blank records and convert CSV or TSV delimiters.

Choose your file

Private by designProcessed locally · Originals unchanged

Choose local input and settings.

Preview & downloads

Your result will appear here

Choose a file, adjust the settings and select Clean File.

How to use, limits & privacy

Choose a UTF-8 CSV/TSV file and its delimiter. Review the whitespace and blank-record options, then run. The header is retained; duplicate records are retained. Whitespace inside quoted multiline cells is trimmed only at the cell boundaries. Blank records may be removed before width validation. Formula protection changes risky cell values; disable only when exact text preservation is required.

Text: UTF-8 only, 4 MiB; CSV: 50,000 data records, 200 columns, 500,000 cells; exports: 16 MiB.

Inputs are never uploaded. Results are rendered as text or a locally generated image. Original files remain unchanged. Changing input invalidates previous results.