Email Validator checks practical email syntax and returns a normalized lowercase value. It helps clean forms, CSV lists, and test data without uploading addresses.
Validate and normalize email addresses with practical syntax checks. Everything runs locally in this tab.
Valid email Normalized: [email protected]
Yes. The tool is free and runs directly in your browser with no account required.
No. Processing happens locally in the browser tab. Your input is not sent to a server.
It is best for a fast syntax sanity check on a single email address before you paste it into a form, CRM field, or CSV row.
It checks for a practical email shape: a non-space, non-@ local part, followed by @, followed by a domain that contains a dot and a top-level segment of at least two characters. It is a pragmatic pattern, not the full RFC 5322 grammar.
No. A syntax pass only means the text is shaped like an email address. It does not check MX records, does not send a verification email, and cannot confirm the mailbox is real or currently active.
For a syntactically valid address, the tool also prints a lowercase version of what you entered. Email domains are case-insensitive by convention and many systems lowercase the local part too, so this is useful for deduplicating lists.
No. Those are syntactically valid email shapes even though the domain is misspelled, so this tool will mark them valid. Catching known-domain typos requires a separate lookup list, which this tool does not include.
No, the tool checks one address per run. For a CSV or list of addresses, you'd need to check them one at a time or use a dedicated batch tool.
