The jQuery Validation Plugin provides drop-in validation for your existing forms, while making all kinds of customizations to fit your application really easy.

Prebuilt files can be downloaded from http://jqueryvalidation.org/

The unreleased development files can be obtained by:

1. Downloading or Forking this repository
2. Setup the build
3. Run grunt to create the built files in the "dist" directory

Include jQuery and the plugin on a page. Then select a form to validate and call the validate method.

<form>
	<input required>
</form>
<script src="jquery.js"></script>
<script src="jquery.validate.js"></script>
<script>
$("form").validate();
</script>

Alternatively include jQuery and the plugin via requirejs in your module.

define(["jquery", "jquery.validate"], function( $ ) {
	$("form").validate();
});

For more information on how to setup a rules and customizations, check the documentation.

See the Contributing Guidelines for details.

IMPORTANT NOTE ABOUT EMAIL VALIDATION. As of version 1.12.0 this plugin is using the same regular expression that the HTML5 specification suggests for browsers to use. We will follow their lead and use the same check. If you think the specification is wrong, please report the issue to them. If you have different requirements, consider using a custom method. In case you need to adjust the built-in validation regular expression patterns, please follow the documentation.

Copyright © Jörn Zaefferer
Licensed under the MIT license.