Email Normalizer

Normalize and clean email addresses to a canonical standard format. Strips Gmail/Google Workspace dot tricks (`j.oh.n@gmail.com` -> `john@gmail.com`), subaddressing plus aliases (`john+spam@gmail.com` -> `john@gmail.com`), converts uppercase to lowercase, and trims whitespace.

Why Use This Tool?

• User Account Deduplication: Prevent users from creating multiple free trial accounts using Gmail dot tricks (`j.o.h.n@gmail.com`).
• Email List Cleaning: Clean newsletter subscriber lists before sending email marketing campaigns.
• Database Normalization: Normalize email addresses before storing in database unique constraints.

How to Use

1. Enter or paste email address (or list of email addresses).
2. Toggle normalization options: Remove Gmail Dots, Remove Plus Aliases, Lowercase Domain.
3. View canonical normalized email address.

Real Working Example

Input:

Input Email: J.o.h.n+test@Gmail.com

Output Result:

Normalized Email: john@gmail.com
Domain Provider: Gmail / Google Workspace
Canonical Hash: MD5/SHA256 normalized hash

Important Technical Details & Specifications

• RFC 5322 Email Rules: Implements provider-specific normalization rules for Gmail, Outlook, Yahoo, and iCloud.
• Bulk List Deduplication: Processes multi-line lists of emails and returns unique normalized records.
• Local Memory Processing: Zero network overhead.

Related Developer Tools

• Phone Parser & Formatter: Normalize international phone numbers.
• Hash Text: Compute SHA256 hashes of emails.
• Email Header Analyzer: Analyze raw email headers.