Preparing your CSV

The short version

Export your contacts from your email tool as a .csv file and upload it as it is. You don't need to tidy it up first.

File type

We accept CSV files only. If your contacts are in Excel or Google Sheets, save or download them as CSV first:

• Excel: File, Save As, then choose CSV UTF-8 (Comma delimited).
• Google Sheets: File, Download, Comma-separated values (.csv).

Then drop it on the Clean a list page:

Which column we use

You don't have to rename anything. We look for a column called email, e-mail or something close like Email Address. If there's no header row, we pick the column that's full of email addresses.

If your file has name columns (first_name, last_name, First Name, Surname, or a single Name column), we keep the names so they're in your clean file too. Every other column is ignored and never uploaded.

Size limit

Up to 50,000 addresses per upload. For a bigger list, split it into several CSVs and upload them one after another.

Duplicates and broken rows are free

Before we charge anything, we remove:

• Duplicates: the same address more than once. We check it once.
• Malformed rows: values that aren't email addresses at all, like a blank cell or john.smith.

You only use credits for the unique, properly formatted addresses left over. Your report shows how many of each we removed.

Free accounts

Until you buy your first credit pack, you can start up to 5 uploads in any 24 hours. Buying any pack removes the limit.