# Find Duplicates

> **Quick answer**: Derrick's Find Duplicates feature scans Google Sheets columns and flags duplicate entries with a new column marker, letting users clean prospect lists without switching tools. Sales teams and recruiters use it to merge multiple data sources, prevent double outreach, and maintain clean CRMs. The workflow runs inside the Derrick add-on, deduplicates based on user-selected columns like email or domain, and costs €9/month with 100 credits for combined enrichment and deduplication tasks across unlimited sheets.

*Canonical: https://derrick-app.com/features/find-duplicates*

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Free

Quickly clean your lists and remove duplicates.

[Try it for free →](https://workspace.google.com/marketplace/app/linkedin_email_phone_finder_ia_%E2%80%94_derrick/3746789989?flow_type=2)

## How to use this feature

Get started in 3 simple steps.

Add your data to Google Sheets.

Ensure column names match across the lists you want to compare.

Select Find Duplicates

Open the Derrick add-on, choose Find Duplicates, and select the columns to deduplicate.

Identify duplicates instantly

A new “duplicate” column appears to flag duplicate entries.

## All the data you can extract

Enrich companies and leads with 20+ data points each.

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Indicates if this row is a duplicate of another

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## Find Duplicates

Combine this feature with others to create powerful automation workflows.

No items found.[See all workflows →](/data-enrichment)