Email Address Normalizer Online
Runs 100% in your browser — your files never leave your device.
Equivalent addresses can look different because of case, whitespace, plus aliases, and provider-specific dot handling. Paste one email per line to normalize them consistently for comparison or deduplication, with invalid rows reported instead of silently discarded.
How it works
- 1
Paste emails one per line
- 2
Review normalized or invalid rows
- 3
Copy the cleaned list
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