CSV Cleaner
Trim spaces, drop blank and duplicate rows.
🔒 Processed on your device — nothing is uploaded.
…or paste CSV below.
About the CSV Cleaner
Data exported from forms and apps is often messy: extra spaces, blank rows and repeated entries. The cleaner tidies a CSV file in one pass and shows you how many rows were removed before you download the clean version.
When to use it
- De-duplicating contact or email lists before importing them
- Cleaning survey and Google Forms exports
- Removing blank rows and columns from spreadsheet exports
- Preparing data for upload to a CRM or mailing tool
Tips for the best results
- Turn on “ignore case” so “Ali@Mail.com” and “ali@mail.com” count as duplicates
- The first row is treated as the header and kept
- Keep the original file until you have checked the cleaned version
How to use the CSV Cleaner
- Paste your text or drop a file into the CSV Cleaner.
- Choose the options you want.
- Copy or download the cleaned result.
CSV Cleaner FAQ
Is the CSV Cleaner free?
Yes. The CSV Cleaner is completely free with no sign-up, no daily limit and no watermark.
Is it safe to use the CSV Cleaner with private files?
Yes. The CSV Cleaner runs entirely inside your web browser, so your files and text are never uploaded to any server.
Does the CSV Cleaner work on mobile?
Yes. It works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows and Mac.
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