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Email Normalizer

Normalize email addresses: lowercase, trim whitespace, remove dots from Gmail addresses, strip + aliases. Perfect for deduplication and validation.

John.Doe+newsletter@gmail.com→johndoe@gmail.com
Normalized
jane.smith+work@company.com→jane.smith@company.com
Normalized
BOB+alias@googlemail.com→bob@gmail.com
Normalized
simple@example.comsimple@example.com

Frequently Asked Questions

Does Gmail ignore dots?
Yes! Gmail treats john.doe@gmail.com and johndoe@gmail.com as the same address. This tool removes dots from Gmail/Googlemail addresses.
What are + aliases?
Gmail allows john+newsletter@gmail.com — everything after + is ignored. This tool strips the + part for normalization.
Is this case-sensitive?
Email addresses are case-insensitive per RFC 5321. This tool lowercases everything.

Related Tools

🔤Case Converter🔗Slug Generator🔒String Obfuscator

How to Use

  1. 1 Enter one or more email addresses (one per line).
  2. 2 The tool lowercases, trims whitespace, removes Gmail dots, and strips + aliases.
  3. 3 View the normalized list ready for deduplication.
  4. 4 Based on RFC 5321 email address rules.