Fix messy spreadsheets — safely.
Upload a CSV or Excel file. We find empty rows and columns, duplicate rows, extra whitespace, and other common issues, then fix only what we can prove is safe.
Free analysis → review safe fixes → pay once to download
Clean CSV and Excel files online
Remove duplicate rows, empty rows and columns, and extra whitespace. Analysis is free. You only pay if you want the cleaned file. JavaScript is required to choose a spreadsheet.
Analyse your spreadsheet freeAnalysis is free. You only pay £2.99 once if you want the cleaned file. No subscription.
Spreadsheet cleaning guides
Short, honest notes on what this tool will change — and what it will leave alone.
- Remove duplicate rows Drop exact whole-row copies after trimming leading and trailing spaces.
- Trim extra spaces Strip leading and trailing spaces from cells without rewriting the text in the middle.
- Remove empty rows Delete completely empty rows and columns. Rows that still have some values stay put.
- Clean a messy CSV See how free analysis works, then review safe fixes before you download a cleaned file.
- Safe cleaning What we refuse to change: formulas, missing values, and anything we cannot explain.