Subdomain Permutation Generator

Turn a base domain into a resolver-ready wordlist: toggle environment, service, and region tokens, add your own keywords, and generate. This tool only builds the list; it never queries DNS.

Use only on domains you own or are explicitly authorized to test.

Computed entirely in your browser. Nothing here is sent to a server. This tool builds a candidate wordlist; it never queries DNS or contacts the target.

Base domain

Built-in word sources

Permutation modes

Standalone words (api.example.com)Prefix/suffix affixing (dev-api.example.com)Word-joining your own keywords (api-dev.example.com)Numbering (app1.example.com)

Separators

Up to ~1,275 candidates with current settings.

Breakdown by mode

Standalone: ~27
Affixing: ~1,248
Numbering: ~0
Word-joining: ~0

Max output

Pick your options above, then click Generate.