Email validator for checking address format. Enter an address, read the Valid or Invalid result, and check for typos. A format check does not confirm delivery.
The Tooloogle Email Validator checks the format of an email address as you type. Review the Valid or Invalid result, then check the local part, the ``@`` separator, and the domain for typos. An address such as ``user@example.museum`` can use a long top-level domain (TLD).
This is an email format checker, not a test of whether the mailbox exists or can receive a message.
The validator checks the entered text against its address-format rules. A passing result does not establish full RFC 5322 compliance, prove that a domain accepts mail, or confirm that anyone monitors the mailbox.
Check the local part before the ``@`` separator, the domain after it, and the TLD. Treat the result as a format check rather than a delivery guarantee.
Type or paste the email address into the input field. Validation begins on the first keystroke.
Read the result: "Valid" appears as soon as the address matches the format; "Invalid" appears when it doesn't (or while you're still typing).
Fix typos as you spot them: common ones: missing ``@``, missing TLD, extra spaces, ``,`` instead of ``.``, missing local part.
For bulk validation: paste each address one at a time; this tool is single-address. For a CSV with hundreds of addresses, run the format check programmatically and use this tool to spot-check edge cases.
Check an address copied from a business card, PDF, or contact form. Use the tool to spot-check entries in a contact list or review an email input during form testing. Correcting a typo is different from verifying that the address belongs to the intended person.
This tool checks syntax. It does not confirm mailbox existence or deliverability. Domain and mail-server checks are separate from address formatting.
Role addresses such as ``info@``, ``sales@``, and ``support@`` describe an address pattern, not whether the mailbox is active. Use an appropriate delivery-verification process if that is what your task requires.
Examples of valid address formats:
``user@example.com``: standard.
``first.last@example.co.uk``: multi-part TLD.
``user-name@example.com``: hyphen in local part.
``user_name@example.com``: underscore in local part.
``info@example.museum``: long TLD (check long TLDs as well as familiar short ones).
``user@sub.example.com``: subdomain.
Examples of format errors:
``user@``: missing domain.
``@example.com``: missing local part.
``user@example``: missing TLD.
``user@example.c``: TLD too short (must be 2+ characters).
``user name@example.com``: whitespace.
``user@@example.com``: double ``@``.
``user@.com``: empty domain label.
Check user input on both the client and server. Avoid treating a format rule as proof that an address is reachable. Some legitimate formats may not match a particular validator.
Consider plus-sign aliases such as ``user+tag@example.com`` when testing a form. Keep the "please correct your email" message clear, and let users review an address instead of assuming every unusual format is a typo.
How to Use Email Validator - Check Email Address Format
Type or paste the email address into the input field (e.g. email@domain.com).
Read the Valid or Invalid result. If it is Invalid, check the separator, domain, and any extra spaces or punctuation.
A valid format does not confirm that the mailbox exists or can receive mail. Check one address at a time and use a separate verification process if delivery matters.
Email validator for checking address format. Enter an address, read the Valid or Invalid result, and check for typos. A format check does not confirm delivery.
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Jul 6, 2023Type:
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