Built for email operations

Turn messy email lists into tidy, hashed data.

Paste addresses, flag malformed rows, and create privacy-safer values PII obfuscation.

Your data does not leave this browser.

Hashing happens locally on your device. There are no uploads, analytics, cookies, logs, or mysterious marketing funnels.

Step 1

Paste email addresses

One per line, comma-separated, semicolon-separated, or mixed.

0 detected

Step 2 Choose your output

Normalize first

Addresses are trimmed, lowercased, blank values removed, and exact duplicates collapsed before hashing.

Match consistently

Use the same normalization and hash type on both datasets. One tiny difference creates a completely different hash.

Know the limit

Hashing is not encryption or guaranteed anonymization. Treat hashes as sensitive, linkable data and handle them accordingly.