Email Validator
Validate single or bulk email addresses online for free. Detailed checks for format, domain, TLD, and common errors.
About Email Validator
Check whether any email address is correctly formatted with 10 detailed validation rules. Validate a single email with a full checklist, or paste a list to bulk-validate hundreds of emails and export the valid ones. All validation is instant and client-side.
email validatorvalidate email addressemail address checkerbulk email validatoremail format validatorcheck email validity online freeemail syntax checker
Your privacy is built in
Everything in Email Validator runs locally in your browser — your data never leaves your device and is never uploaded to a server, so nothing you enter is stored or seen by anyone else. No account, no sign-up, no watermark, and completely free.
Frequently asked questions
Does it check if the email actually exists?
No — this tool validates the email format and syntax only. Verifying whether an inbox actually exists requires sending a test email or using an MX lookup service.
Can I validate multiple emails at once?
Yes! Switch to Bulk mode and paste a list separated by newlines, commas, or semicolons.
Can I export the valid emails?
Yes — in Bulk mode, click "Copy valid emails" to copy all passing addresses to your clipboard.