Free domain tools

Free domain tools

Search, generate and research domains with live RDAP and DNS signals — no account and no invented prices or valuations.

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Live availability signals across 328 extensions. Free, no signup.

Instant domain search

Type a name once and see live availability signals across 328 extensions, sorted into clear categories.

  • Results stream in as you type — no submit button
  • Registry-level RDAP data, with DNS as a second signal
  • Filter to available only, or search within extensions
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Domain name generator

Turn one keyword into brandable, compound, prefixed and suffixed name ideas, each checked for availability as it is generated.

  • Five idea styles from literal to invented
  • Fans each idea across core extensions
  • Every suggestion is checked, not just listed
Open tool

Domain research

For any name, pull the registry record, DNS and mail setup, live site content, history and handle availability into one dashboard.

  • Registrar, registration and expiry dates, status codes
  • DNS host, mail provider, SPF and DMARC presence
  • Handle availability across developer and social platforms
Open tool

Domain extractor

Turn URLs, emails, HTML, CSV or mixed text into a clean list of root domains or full hostnames without uploading the source.

  • Public Suffix List accuracy for co.uk and private suffixes
  • Remove duplicates, count repeats and sort A–Z
  • Copy the result or download it as TXT
Open tool

Why the results are trustworthy

Live, not cached

Every result comes from a query made when you type it, not a stale availability list.

No invented prices

FlashDomains does not guess registration costs. Confirm current first-year and renewal prices at the registrar checkout.

Saved on your device

Star names to build a shortlist. History and recommendations stay in your browser.

Looking for a specific extension?

Read what each extension is for, who can register it and what to watch out for.

Browse the extension directory