PureCSV is a preflight checker for CRM imports. Upload a contact CSV, choose your destination platform, and catch issues before they hit HubSpot, Mailchimp, Salesforce, Pipedrive, ActiveCampaign, or Klaviyo. Unlike generic CSV cleaners, PureCSV looks for platform specific import risks like rejected rows, duplicate records, invalid fields, formatting problems, missing values, and broken segmentation issues.