Email Normalizer
Bring email addresses to a canonical form: lowercase, remove +tags, drop dots in gmail addresses — useful for deduplication and mailing lists. Batch mode included.
Result
| John.Doe+newsletter@Gmail.COM | → | johndoe@gmail.com |
| маша@почта.рф | → | Error |
Frequently asked questions
Why normalize emails?
The same mailbox can be written as John+tag@gmail.com or john.doe@gmail.com. Normalization maps all variants to one canonical address for deduplication.
Which providers ignore dots?
Google (gmail.com and googlemail.com) ignores dots and supports +aliases. For other providers removing dots would change the address, so it is not applied.
Does it validate emails?
It checks the address format (RFC-like), but cannot verify that the mailbox actually exists — only the mail server can do that.