What counts as a valid email here?

It uses a pragmatic pattern — a local part of letters, digits and the common symbols (._%+-), an @, a dot-separated domain, and a two-or-more-letter top-level domain. This matches the vast majority of real addresses.

How accurate is the matching?

The pattern favours precision over catching every exotic-but-legal address, so it rarely produces false positives. Unusual quoted or internationalised addresses may not be matched.

Is my text uploaded anywhere?

No — all extraction happens locally in your browser and nothing is sent to a server.

Extract Emails from Text

Pull every email address out of any text.

Extract email addresses from text

Paste any text and pull out every email address it contains. Remove duplicates, lowercase the addresses, sort them alphabetically, and export as a newline list or a comma-separated string.

Everything runs in your browser — nothing is uploaded.