How Many: Generate between 1 and 1,000 addresses per click. Every address in a batch is checked against the others, so no address ever repeats within one run.
Real Names (default): Builds the local part from an embedded database of common US first names and surnames, joined by a dot - for example michael.harris@gmail.com. This mode produces addresses that look the most like genuine ones.
Unique ID: Uses 8 completely random letters for the local part - for example kxqbwzmu@gmail.com. These are the hardest to guess but also the least human-looking.
Pronounceable ID: Alternates consonants and vowels for 10 easy-to-read letters - for example lavokiruma@gmail.com. A good middle ground between realistic and random.
No digits in the first 200: The first 200 addresses of every batch never contain a single digit. From the 201st address onward, two random digits are added at the end - for example michael.harris83@gmail.com - which keeps every address in large batches guaranteed unique.
Domain: Choose gmail.com, yahoo.com, outlook.com, hotmail.com, aol.com, icloud.com or proton.me. Random picks a different provider for every address in the batch, while Custom accepts any domain you type - pasting a full URL such as https://mail.example.com/ also works, because the tool trims it down to the bare domain.
Separator: New line gives you one address per row (best for spreadsheets), Comma and Comma + Space produce inline lists (handy for form fields), and Space joins everything into a single compact line.