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Email Validator

Validate email address format locally — regex shape, @ presence, domain TLD, and length/dot rules with named issues. No disposable-domain or MX checks. Code never leaves your device.

100% Local Browser Native

How to Use the Email Validator

1. Type the email address

Full address with @ and domain — typo traps like gmail.con fail loudly.

2. Read the format verdict

Valid/invalid with the exact broken rule named, not a bare red cross.

3. Fix and recheck

Correct the flagged part and run again; valid syntax still needs an inbox that exists.

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Frequently Asked Questions

Is it RFC 5322 compliant?

No — a practical regex plus length/dot rules, not full RFC 5322 grammar. Edge-valid addresses may fail; that is the documented tradeoff.

Typo detection?

No typo suggestions — misspelled domains (gmial, yaho) simply fail the format rules. Re-read the domain yourself.

International addresses?

No IDN/punycode handling — Unicode characters pass the shape check only when an @ and dotted domain are present.

Is my input uploaded anywhere when using Email Validator?

No — validation runs locally in your browser, free with no signup.

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Last updated October 2026