Free CSV Tools
Eight online tools to clean, transform, validate, and convert CSV and spreadsheet files. No software to install. Files processed server-side and deleted after 24 hours.
Remove Duplicates
ProInstantly remove duplicate rows from any CSV or spreadsheet. Keep your data clean and analysis-ready.
Trim Whitespace
Strip leading and trailing spaces from every cell in your CSV or spreadsheet with one click.
Normalize Casing
ProConvert text in your CSV to UPPERCASE, lowercase, or Title Case — across all cells or specific columns.
Remove Empty Rows
Clean up blank rows from CSV and Excel files automatically. Get a compact, analysis-ready dataset.
Remove Empty Columns
Delete columns with no data from your CSV or spreadsheet. Simplify your schema automatically.
Convert Delimiter
ProConvert your CSV from comma-separated to tab, semicolon, or pipe-delimited format — instantly.
CSV Validator
Validate your CSV file and get a detailed report of formatting issues, encoding problems, and inconsistencies.
CSV ↔ XLSX
Convert CSV files to Excel (XLSX) or Excel files to CSV online. Fast, free, and no software required.
Need more power?
Free plan supports files up to 5 MB with core operations. Upgrade to Pro for 50 MB files, all operations, and 500 jobs per month.
See Pro & Business plans