10 jQuery Form Validation Plugins

Sam Deering
10 jQuery Form Validation Plugins to help sooth your head from all that serious head bashing over your form validation errors. This also saves your users from throwing thier computer out the window! ;-)

Web forms are the standard way for to obtain input data of the users. As usual, you always need to validate the input data before to accept them, so the server-side validation is necessary because errors in the input data can generate errors in the server code. You have different alternatives for server-side validation, using frameworks (CodeIgniter for PHP or Apache Wicket for JAVA are some examples of web forms validation routines) or programming all the code lines for to validate the input data from the user. Check out below our 10 tutorial examples.

Premium – JQuery MultiValidator. A form validating plug-in

Multivalidator is an ajax form validator with unique features, captcha that increases the user experience and protect your forms, supports regular expressions, ajax callbacks and his appearance is fully customizable.

1. jQuery plugin: Validation

This jQuery plugin makes simple clientside form validation trivial, while offering lots of option for customization. That makes a good choice if you’re building something new from scratch, but also when you’re trying to integrate it into an existing application with lots of existing markup.

2. Autohelp

Sometimes it’s important to tell the user what’s expected of him. Especially when filling out a complicated form. This plugin uses the title attribute to display help in a separate DOM element.

3. Simple jQuery form Validation

The form goes nowhere, but shows some form input validators both serverside and browserside.

4. Easy client-side web form Validations

An easy way, XHTML standard, accesible and usable, library for form validations using JavaScript with the powerful libraries jQuery and YAV.

5. jQuery AlphaNumeric

It is a JavaScript control plugin that allows you to limit what characters a user can enter on textboxes or textareas. Have fun.

6. Masked Input Plugin

This is a masked input plugin for the jQuery JavaScript library. It allows a user to more easily enter fixed width input where you would like them to enter the data in a certain format (dates,phone numbers, etc).

7. TypeWatch: jQuery Plugin

There are 4 settings you can set:
1. callback: The function to callback after the user has “finished” typing. Default void.
2. wait: The number of milliseconds to wait before the plugin considers that typing has finished. Default 750.
3. highlight: Aesthetics, determines if the text should be highlighted when the textbox receives focus. Default true.
4. captureLength: The minimum amount of characters necessary before allowing the event to fire. Default 2.


8. Text limiter for form fields

Counts down the number of chars left on a Textarea/Input fields, won’t let the user write more than allowed number of characters.

9. Ajax Username Check – Using JQuery!

The embedded javascript picks up the onblur event of the input field with id username. It then sends a post request to check.php which checks the csv for the filename and returns the result. The embedded JavaScript then updates the span element with id usernameResult.

10. A jQuery Inline Form Validation

This way you don’t have to worry about your HTML form structure. The rounded corner and shadow are done with CSS3 and degrade well in non-compliant browsers. There are no images needed.

Get your free chapter of Level Up Your Web Apps with Go

Get a free chapter of Level Up Your Web Apps with Go, plus updates and exclusive offers from SitePoint.