Contact list cleaner
Paste a CSV with a header row to get clean columns for a CRM import. Processing happens in your browser, so the list never leaves your device.
What does the cleaner change?
It lowercases emails, trims spaces, and splits a full name at the first space, leaving dots and plus tags alone because those can be separate mailboxes. Flagged rows stay in the output with a reason in the Check column. Delete that column before you import.
To build the same checks into a sheet, see Clean a contact spreadsheet for a HubSpot CSV import, or start from the contact import template.