Open a messy spreadsheet and clean it in one go: duplicates and empty rows removed, spaces trimmed, letter case fixed, phone numbers in one international format and broken characters repaired.
Your files never leave your device
Choose the phone column and your default country code. Numbers such as 0612 345 678, 00 44 20 7946 0958 or (020) 7946-0958 become +447946… in E.164, the format phones, CRMs and messaging tools expect. Values that cannot be a phone number are left as they are and counted.
Text like “Café” or “العربية” appears when UTF-8 was read with the wrong encoding; the repair option turns it back into “Café” and “العربية”. For CSV files saved in an old encoding (Windows-1256, Windows-1251, Shift_JIS…), pick the encoding and the file is read correctly.
No. The cleaning is done in your browser and the file never leaves your device.
No. You download a new, cleaned copy.
Either the whole row must be the same, or only the column you choose. Comparison ignores capital letters and surrounding spaces; the first row is kept.
E.164: a plus sign, the country code and the number without spaces, for example +442079460958.
Only text that is clearly UTF-8 misread as Windows-1252/Latin-1. Normal text is never touched.
XLSX, XLS, XLSM, XLSB, ODS and CSV. CSV files are saved as CSV, the others as XLSX.