DATA STUDIO · FREE

CRM Lead Deduplicator

Drop in your CRM export. Get one clean list back, duplicates merged, best data kept.

Runs in your browser. Your file is never uploaded.

Choose a CSV file

First row must be column names. Up to 50,000 rows.

Want a person to look at your result? Free, and no newsletter.

Never clean this list by hand again.

We automate your CRM so duplicates never pile up and every lead gets followed up on time.

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About the CRM Lead Deduplicator

The CRM Lead Deduplicator finds duplicate contacts in a CSV export from any CRM, merges them and keeps the best data from each. It runs in your browser, so your lead list is never uploaded.

When to use it

Clean a list before importing it into a new CRM.
Stop sending the same person two emails.
Merge lists from events, forms and ads.

Tips for a better result

Match on email first, then on phone number.
Export a backup before you replace data in your CRM.

Built for small business admin

These tools handle the paperwork and email setup a small business needs every week, without a subscription. Documents are made in your browser and download as clean PDFs. When the paperwork outgrows a free tool, we build the website, client portal or system that does it for you.

Questions people ask

Which CRMs does it work with?

Any CRM that exports a CSV file, such as HubSpot, Salesforce, Pipedrive, GoHighLevel or Zoho.

Is my list uploaded?

No. The file is processed in your browser.

How does it decide which data to keep?

For each group of duplicates it keeps the most complete value of every field.

More free tools: see every tool.