Free data cleanup tools

Free, browser-only utilities for messy CRM data. Files are processed on your machine and never uploaded — a small taste of what CleanSmart does to a whole CRM.

Duplicate Cost Calculator

Estimate what duplicate records cost you every year on HubSpot, Salesforce, Klaviyo, Mailchimp, or Shopify.

Test Data Generator

Generate a realistic contacts CSV with seeded duplicates and messy fields — plus an answer key — so you can test any cleanup tool without risking real data.

CSV Dedupe Tool

Find duplicate rows in a CSV by the columns you choose — right here in your browser, up to 5,000 rows.

CRM Import Checker

Check a CSV against HubSpot, Salesforce, Klaviyo, Mailchimp, or Shopify import rules before the import fails halfway.

RevOps Data Health Check

A quick self-assessment across the data-quality dimensions that quietly break pipelines.