Email Validator
Check if an email address format is valid
How to Use Email Validator
- Enter an email address in the input field
- The tool instantly validates the format
- Green checkmark means valid format
- Red X means invalid format with explanation
About Email Validator
Validate email addresses to check if they follow proper format rules. This tool checks the syntax of email addresses against standard formatting rules. Perfect for form validation, data cleaning, or verifying user input.
Frequently Asked Questions
Does this verify if the email actually exists?
No, this only validates the format/syntax. It doesn't check if the email address is real, active, or can receive mail.
What makes an email format valid?
Valid emails have a local part, @ symbol, and domain. The rules are defined in RFC 5322 but we use practical validation that matches most real-world use cases.
Why do some unusual emails show as valid?
Email format rules are more permissive than many people expect. Technically valid formats might look strange but are allowed by the specification.
Should I use this for production form validation?
For basic validation, yes. For critical applications, consider also sending a verification email to confirm the address works.