Email Validator
Validate an email address format with real syntax checks — format only, it cannot confirm a mailbox exists — free, fast and private.
Enter an email address to validate its format.
How to use Email Validator
- Enter an email address.
- Click Validate Email.
- Read which format checks passed or failed.
- Remember: a valid format does not prove the mailbox exists.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Does a valid result mean the email address exists?
No. This tool only checks the format (syntax, @ sign, domain shape). It cannot check whether the mailbox exists or accepts mail — that needs a server-side mailbox check.
Is the Email Validator free?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Do I need to install anything?
No. It works in any modern browser on phone, tablet or computer.
Is my data uploaded?
No. This tool runs entirely in your browser and your input is never uploaded to a server.