free tool by Writly

duplicate detector

Find duplicates in your contact lists.

any fieldcsv support100% free

TL;DR

Duplicate Detector — Paste CSV data and specify which field to check for duplicates.

try it now

Paste CSV data and specify which field to check for duplicates.

Clean Your Lead Lists

Duplicates waste your outreach credits and look unprofessional. Find and remove them.

How It Works

Paste CSV. Include headers in the first row.

Choose field. Email, name, or any column.

Find duplicates. See all duplicate entries.

frequently asked questions

What format?

Paste CSV data with headers in the first row.

Can I check multiple fields?

Currently one field at a time. Check email first, then name if needed.

let Writly find your next customers

we find your leads, write the cold messages, run the outreach across email, instagram, sms, and whatsapp, then follow up. warm replies land in your inbox. you only pay when someone replies.

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