CSV Cleaner
Clean a CSV in one click: strip the Excel BOM, trim whitespace and non-breaking spaces, drop empty and duplicate rows, normalise delimiters, and guard against spreadsheet formula injection. Reports every fix.
Frequently asked questions
- Why does my first column have a weird character?
- Excel adds a UTF-8 BOM when saving CSV; the cleaner strips it from the first header.
- What is CSV formula injection?
- Cells starting with =, +, - or @ can execute as formulas in spreadsheet apps; the cleaner can prefix them with an apostrophe.