CSV Cleaner

Clean a UTF-8 CSV by trimming whitespace, removing empty or repeated rows and keeping selected columns. Preview the table before export.

Open the interactive workspace with JavaScript enabled. Preview and editing are free.

How to use CSV Cleaner

1. Load or paste CSV and select its delimiter.
2. Read columns and choose cleaning rules.
3. Prepare and review the cleaned output, then export.

Output and supported files

Cleaned CSV. 5 MB; 5,000 rows; 100 columns; 100,000 cells. Formula protection prefixes risky CSV cells with an apostrophe when enabled.

Do my files leave my device?

Your file contents stay in your browser. Account, credits and tool-usage requests reach Oxodian.

Related tools

Files are processed on your device. Sign in for five daily free credits; one export or started session costs one credit. Unused daily credits do not roll over. Device and file limits apply.