What does CSV Cleaner do?

Clean, dedupe, and normalize spreadsheet data.

Is CSV Cleaner an AI tool, and how is it counted?

No. CSV Cleaner is a non-AI tool. Guests can use it once a day, and it is unlimited with a free account. A visit counts once, the first time you add a file or text, and you can keep working for 30 minutes.

Does CSV Cleaner upload my files?

No. CSV Cleaner runs entirely in your browser, so your files never leave your device.

How long does CSV Cleaner take?

Most jobs finish in about 10 seconds, depending on the size of what you give it.

CSV Cleaner

Free

Clean CSV files online: trim spaces, remove duplicate and empty rows, and normalize spreadsheet data. Preview the result and download the cleaned CSV.

Drop a CSV file to clean

CSV, TSV · max 50.0 MB

Browse files

Or paste CSV text

How to get the best results

1Drop a CSV or paste data.
2Tick the clean-ups you want (trim, dedupe, remove empty rows…).
3Preview and download the cleaned file.

Turn on "Ignore case when deduping" for emails and names typed inconsistently.

Example

You give

name,email Ann ,[email protected] Ann,[email protected] , Ben,[email protected]

You get

With "Ignore case when deduping" on: two rows (Ann and Ben), spaces trimmed, the duplicate and blank row removed

CSV Cleaner FAQ

Common questions about using this tool on Toolartisan.