How to trim whitespace from email addresses in a contact csv
- Step 1Export your contact list as CSV — Download from your form tool, CRM, or checkout export.
- Step 2Drop into Whitespace Trimmer — Select the Email column.
- Step 3Run the trim — Spaces are removed from around every email address.
- Step 4Import into your ESP — Upload the cleaned CSV to Mailchimp, Klaviyo, or your email platform.
Frequently asked questions
Does this remove spaces inside email addresses?+
It removes leading and trailing whitespace. Internal spaces are only removed if you enable inner-space stripping. A space inside an email address usually indicates bad data that needs manual review.
Why does my form tool produce emails with leading spaces?+
Most form tools trim on submit, but copy-paste from spreadsheets or bulk import from another system can introduce spaces.
Should I trim all columns or just Email?+
Trimming all columns is generally safe and recommended for any CSV that came from a spreadsheet or manual entry process.
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