Contact list cleanup and dedupe
Quick help
Trim cells and lowercase email addresses, then keep the first row for each nonempty email address. Rows without email remain separate. Download removed duplicates separately and review conflicts before using the clean list. No address verification, phone normalization or guessing identities.
- Enter your details and replace fictional examples.
- Prepare and review the result.
- Download, print or export a draft to keep your work.
What it does not do: No sending, hosting, publishing, legal review or automatic reminders.
Trim cells and lowercase email addresses, then keep the first row for each nonempty email address. Rows without email remain separate. Download removed duplicates separately and review conflicts before using the clean list. No address verification, phone normalization or guessing identities.
Nothing is fetched or sent. Previews show up to 100 CSV rows; downloads include all rows, up to 10,000. CSV downloads prefix possible spreadsheet formulas with an apostrophe. Drafts preserve original text. Keep exported personal records private.
Import is kept in this page's memory. The original profile file is unchanged.
Preview / results
Enter your details on the left to prepare your result.