See it work · Chapter 5, The Spreadsheet That Hated You Back

Spreadsheet Cleaner

Paste a few messy rows. The tool proposes a clean version and flags the duplicates and the guesses it is not sure about. It never touches your original, because the whole danger of a cleaning tool is a confident fix to the wrong row. You approve every change.

Messy rows (paste CSV or lines, fake or non-sensitive only)

Use fake or anonymized data. Do not paste a real customer list. This sends the text to a free AI model through your own sign-in.

First run asks you to sign into Puter, a free account.