Normalize first
Addresses are trimmed, lowercased, blank values removed, and exact duplicates collapsed before hashing.
Built for email operations
Paste addresses, flag malformed rows, and create privacy-safer values PII obfuscation.
Hashing happens locally on your device. There are no uploads, analytics, cookies, logs, or mysterious marketing funnels.
Step 1
Step 3
| Normalized email | Hash | Type | Status |
|---|
Addresses are trimmed, lowercased, blank values removed, and exact duplicates collapsed before hashing.
Use the same normalization and hash type on both datasets. One tiny difference creates a completely different hash.
Hashing is not encryption or guaranteed anonymization. Treat hashes as sensitive, linkable data and handle them accordingly.