Email Domain Counter

Group structurally valid email addresses by normalized domain and rank domain counts locally.

Email list

ReadyOutput is ranked by count, then domain name.

These tools work locally on text. Syntax validation is not mailbox verification: no DNS/MX lookup, SMTP connection, account-existence check, or deliverability test is performed.

How to use this Email Domain Counter

Count how many valid addresses belong to each email domain in a pasted list. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.