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is_email.js is a port of the is_email PHP library to Javascript.

is_email validates email address for you using simple javascript function is_email. Validate an email address according to RFCs 5321, 5322 and others.

Note:- It doesn't not support DNS check for MX records and parsed address components like the PHP is_email does.

How to use ?

  1. Include is_email.js in your page.
<script type="text/javascript" src="is_email.js"></script>
  1. And start validating emails.
var check = is_email("");
if (check) {
  alert("You have entered correct email address.");
} else {
  alert("Please provide correct email address.");

Wanna Donate?

Go to and click on donate button at the top-right.