✅ Email Address Validator — Check Emails Free
Paste one email or a list (one per line) and see which ones look valid. Useful for cleaning contact lists.
Input
Result
Summary
Private by design. This tool runs entirely in your browser — nothing you enter or add is uploaded to any server.
How it works
- Paste one or more email addresses, one per line.
- Press Validate.
- Each address is marked Valid or Invalid, with a summary count.
Examples
- Clean a list of newsletter subscribers.
- Quickly check a single address before sending.
- Spot typos in email fields.
Frequently asked questions
Is this a full RFC check?
It uses a practical regular expression that catches most invalid addresses. It does not verify that the mailbox actually exists.
Are the emails uploaded?
No. Validation runs entirely in your browser.
Can I paste many at once?
Yes. Put one address per line.
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