CSV Cleaner
Trim unwanted whitespace and remove empty rows from CSV data, with a change report before download.
Explore the tool with example spreadsheet data before using your own file.
Limits: 50,000 data rows and 500,000 cells per result. Excel files: one selected worksheet per file. Only table values are exported.
Result preview
Preview shows up to 20 rows and 12 columns. Downloads contain the full result.
Protection prefixes formula-like cells with an apostrophe. This changes their exported text. XLSX results use text cells.
How to use this tool
- Choose a CSV, TSV or Excel file. For Excel, select the worksheet.
- Choose which cleanup operations to apply. Trimming values can change meaningful whitespace, so it is optional.
- Review the result and change report, then download a new CSV.
What to check
Formatting cleanup cannot recover missing values or reliably repair malformed quotation marks. It does not remove duplicate records; use the duplicate finder for that.
Does this tool upload my files?
No. Processing happens in your browser. The tool does not send spreadsheet contents to Tech Tycoon or to an AI service. Your original file is unchanged.