Remove Duplicates from CSV or Excel

Private by design: your files are read only inside your browser. Your files never leave your browser: nothing is uploaded to a server. We use cookieless Vercel page-view analytics; no file data is collected. Once the page has loaded the tool works offline.

Upload a CSV or Excel file, tick the columns that define a duplicate (for example just Email), and download a clean file. Matching ignores case and extra spaces unless you choose exact matching. The first copy of each row is kept.

Match on:

Exact match (case and spaces matter)

Preview (clean rows)

Want more than a quick fix?

Small Business Sheets Kit ($14 on Gumroad): six spreadsheet templates for small service businesses.
Small Business Bookkeeping Spreadsheet ($12 on Gumroad) for logging income and expenses all year.
Rather hand it off? Our Year-End Books Cleanup on Fiverr ($70 package) cleans and categorizes up to 1,000 transactions into a tidy sheet for your accountant.

Just starting out? Grab the free Starter Expense Tracker (pay what you want, $0 is fine).

Remove Duplicates from CSV or Excel

Preview (clean rows)

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