01
Paste one address per line
Add an email list and review any unreadable rows by their original line number.
Contact Tools
Gmail Alias Duplicate Finder
Review Gmail dot and plus-tag aliases before choosing which duplicate email addresses to remove.
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Data handling
Storage and export controls
- Retention
- The tool's working state is kept only while this page is open. Inputs and results are not saved to persistent storage by Got A Tool.
- Export
- The tool may prepare a result after you run it. It downloads or copies it only when you choose that action.
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How it works
Review possible Gmail aliases before removing an address
02
Choose Gmail matching rules
Decide whether Gmail dots and plus tags should count as the same mailbox.
03
Select groups deliberately
Every possible duplicate starts unselected; choose a group only after you have reviewed it.
Matching rules
Gmail aliases are handled differently from other providers
Gmail and Googlemail addresses can refer to the same mailbox when their dots or plus tags differ. This tool can group those possible aliases with settings you control. It does not apply the same assumptions to Outlook, custom domains, or other providers; those addresses remain exact text matches. Downloading without selecting a group keeps all readable addresses in their original order.
Questions
Gmail Alias Duplicate Finder details
Are Gmail dots ignored by default?
Yes. You can turn off dot handling when a list should keep dot variations separate.
Are plus tags ignored by default?
Yes. You can turn off plus-tag handling when the address tags are meaningful for your workflow.
Does it deduplicate Outlook or custom-domain addresses?
No. The Gmail alias rules do not apply to other providers. Those addresses stay separate unless their full text is exactly the same.
What happens when I select a duplicate group?
The first source line is kept and the other selected aliases are removed from the reviewed download. Unselected groups stay unchanged.
Is my email list uploaded?
No. Matching, review, and download happen locally in your browser.
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