CSV Email List Deduplicator
Removes duplicate email addresses from a pasted CSV list. Case-insensitive by default. Optional domain-only mode (one email per domain) for ABM list dedup.
name,email John Smith,john@acme.com Jane Doe,jane@example.com Bob Jones,bob@acme.com
Parses pasted CSV, identifies email column, dedups by normalized email or by domain depending on mode. Returns the cleaned CSV ready to copy back.
Before importing a list into a sending tool. After merging multiple lists from different sources.
FAQ
What if my CSV doesn't have an email column header?+
The tool auto-detects which column contains emails by checking for @ characters. For unambiguous mapping, paste CSV with a clear 'email' or 'Email' header column.
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