Can I extract email addresses from a HubSpot or Klaviyo CSV export?

Yes. Export your contact list or segment as a CSV from your platform, upload it to Deliteful, and enter the exact column header for email as it appears in the file (HubSpot typically uses 'Email'; Klaviyo uses 'Email Address' — check your header row).

Can I use this to build a suppression list from an unsubscribe export?

Yes. Export your unsubscribes as a CSV, extract the email column, and use the resulting text file as a suppression list import in your ESP or ad platform.

Does the tool work with Google Analytics or GA4 CSV exports?

Yes, as long as the export is a standard CSV with a header row. GA4 exports via Google Sheets or Looker Studio can be downloaded as CSV and processed normally.

Will the extracted list include duplicate email addresses?

Yes — duplicates are preserved as they appear in the source file. If you need a deduplicated list, paste the output into a spreadsheet and remove duplicates after extraction, or use it with a tool that handles deduplication on import.

Extract Email Lists or UTM Values from CRM and Platform CSV Exports

Marketing managers pull CSV exports from HubSpot, Klaviyo, Google Ads, and analytics platforms constantly — and usually need just one column: email addresses for a segment, UTM source values for a campaign audit, or subscriber IDs for a suppression list. Deliteful's CSV Extract Column tool isolates that field in one step.

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A standard CRM or platform export contains contact metadata, behavioral data, and system fields — often 20–40 columns — when all you need is the email column to import into a new sequence, or the UTM campaign values to audit last quarter's attribution. Opening the full export in Excel to manually isolate one column takes several minutes, risks accidental formatting changes, and is unnecessary for a task this narrow.

Recurring marketing workflows where this saves real time include: extracting subscriber emails from a Klaviyo segment export for import into a new flow, pulling UTM parameters from a GA4 CSV for a campaign naming audit, isolating unsubscribe emails from a platform export to build a suppression list, or grabbing contact IDs from a HubSpot export for a bulk property update via API. Each uploaded CSV produces its own output file, so you can process multiple platform exports in one session.

How it works

1
Export from your CRM or marketing platform
Download a contact, campaign, or analytics CSV from HubSpot, Klaviyo, Google Ads, GA4, or any marketing platform.
2
Upload and name the column
Upload the file and enter the exact column header you need (e.g., 'Email Address', 'utm_campaign', 'Contact ID').
3
Download your clean list
Get a plain text file with one value per line — ready to import into your next tool, paste into a suppression list, or share with your team.

Frequently asked questions

Can I extract email addresses from a HubSpot or Klaviyo CSV export?: Yes. Export your contact list or segment as a CSV from your platform, upload it to Deliteful, and enter the exact column header for email as it appears in the file (HubSpot typically uses 'Email'; Klaviyo uses 'Email Address' — check your header row).
Can I use this to build a suppression list from an unsubscribe export?: Yes. Export your unsubscribes as a CSV, extract the email column, and use the resulting text file as a suppression list import in your ESP or ad platform.
Does the tool work with Google Analytics or GA4 CSV exports?: Yes, as long as the export is a standard CSV with a header row. GA4 exports via Google Sheets or Looker Studio can be downloaded as CSV and processed normally.
Will the extracted list include duplicate email addresses?: Yes — duplicates are preserved as they appear in the source file. If you need a deduplicated list, paste the output into a spreadsheet and remove duplicates after extraction, or use it with a tool that handles deduplication on import.