A jQuery inline form validation, because validation is a mess
When an error needs to be displayed, this script creates a div and positions it in the top right corner of the input. This way you don’t have to worry about your HTML form structure. The rounded corners and shadows are pure CSS3 and degrade well in non compliant browsers.
Validation
The Validation plugin is one of the oldest jQuery plugins (started in July 2006) available that has proved itself due to reliabilty, ease of use and extensive docs.
Validation »
Highly Customizable Yet Simple Form Validation
With this highly customizable plugin the user can set his own class to define the rule, set events onError and OnValid for a particular class and you can also add their own effects, may be jquery animate().
Highly Customizable Form Validation »
LiveValidation – Validation as you type
LiveValidation is a small open source javascript library for making client-side validation quick, easy, and powerful. It comprises of two main parts. Firstly, it provides developers with a rich set of core validation methods, which can also be used outside the context of forms. Secondly, it provides your visitors with real-time validation information as they fill out forms, helping them to get it right first time.
LiveValidation »
Ketchup Plugin
Ketchup Plugin is a slim jQuery Plugin that validates your forms. It aims to be very flexible and extendable for its appearance and functionality.
Ketchup Plugin »
jTip – The Jquery Tool Tip
jTip pulls content into a tool tip using the HttpXMLRequest object. By adding a class attribute value of “jTip” to a link element you can create a tooltip from the content found in the file the href is pointing too.
jTip »
jQuery Live Form Validation
This plugin helps you to easily create form validations with high flexibility and is a packaged with a huge set of options.
jQuery Live Form Validation »
Valid8 – An input field validation plugin
Valid8 solves both simple and complex validation scenarios. Everything from a basic required field to regular expressions, ajax requests and arbitrary javascript functions.
Valid8 – An input field validation plugin »
jVal – jQuery Form Field Validation Plugin
jVal is a jQuery form field validation plugin that provides an appealing animated message flyout that doesn’t impede form layout/design while being user-friendly.
jVal »
The Original jQuery Plugin
jQuery Form Plugin
And if all of the rest of the plugins on this page can’t help, you can always rely on the original jQuery form plugin: jQuery Form Plugin »