Enter a name and company domain and get every likely email format instantly — first.last, flast, first@ and more. Runs entirely in your browser. Nothing is stored or sent anywhere.
Enter at least a first name (or last name) and a company domain.
A permutator gives you candidates, not confirmed emails. We build and verify full B2B lead lists to 97–98% deliverability — Apollo, Sales Navigator and Crunchbase, ready for Instantly and Smartlead.
Most companies use one predictable pattern for every employee's email — usually first.last@company.com or flast@company.com. If you know one person's format, you know everyone's. This tool takes a name and domain and lays out every common permutation so you can test them and find the one that lands.
It's the same first step our team takes when we can't find a verified email directly. The difference is what comes next: we run each candidate through multi-vendor verification so you never send to a guess. Guessing formats is free; sending to unverified addresses costs you your sender reputation.
This tool does not check whether any address exists. It only builds the list of formats a real email could take. To know which one is deliverable you need verification — an MX and SMTP-level check that confirms the mailbox accepts mail. If you're sending cold email at any real volume, verify before you send, or let us hand you a list that's already clean.
It generates every common email format for a person from their name and company domain — first.last@, flast@, first@ and so on — so you can find the address that actually works.
No. A permutator only generates candidate formats. To confirm which address is real and deliverable you still need email verification. Rooster4am verifies every list to 97–98% deliverability before delivery.
Yes. It's completely free, needs no signup, and runs entirely in your browser — nothing you type is sent to any server.
Find one known email at the company (from a signature, LinkedIn, or a press page), match it to a pattern here, then apply that same pattern to your other prospects. Or skip the guesswork and order a verified list from us.