EmailGuard
Free tools

Validate an address in your browser

Run quick checks without an account. When you need volume, webhooks, or team access, switch to the API.

Full email validator

Email validation tools

Paste one email and inspect syntax, disposables, roles, relays, public domains, and normalization.

Email Syntax Checker
Validate RFC-aware syntax, TLDs, and common formatting mistakes before an address hits your database.
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Disposable Email Checker
See whether a domain is on our disposable list or resolves as a throwaway provider via live DNS.
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Role Address Detector
Find shared inboxes like info@ and support@ that skew engagement and sales routing.
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Email Normalizer
Preview the canonical form EmailGuard stores—local part, domain, and subaddressing flags.
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Beta
Relay Domain Lookup
Identify forwarding providers such as Apple Hide My Email and common Gmail alias patterns.
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Public Domain Checker
Identify consumer mail providers when B2B fit or lead scoring depends on corporate domains.
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Full Email Validator
Run the complete detection stack—syntax, normalization, role, public, relay, and disposable—in one pass.
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Validate at signup scale

Free browser checks are rate-limited. Create a free account for API keys, higher volume, and team billing.

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