Email Validator
Validate email addresses against a strict RFC-style pattern. Paste one per line and see which pass.
100% in your browser. Files never uploaded.
2 valid · 1 invalid · 3 total
alice@example.com
bob@invalidinvalid syntax
charlie+spam@example.co.uk
How to use
- 1Paste addressesOne per line.
- 2See per-address pass/failPlus a summary count and a reason for each rejection.
FAQ
Does this guarantee deliverability?
No — only syntax. Even a syntactically valid address might bounce. For real deliverability you need an MX-lookup + SMTP probe, which has to run server-side.
How strict is the pattern?
RFC-pragmatic — accepts the forms users actually type (including +tags, dotted local parts, quoted local parts) while rejecting obvious garbage.