We use javascript validation almost everywhere we use forms. Validation is sometimes painful and we ned up repearing similar javascript code in several places. So I decided to search for some simple and easy to use libraries that can ease up the job of adding client side validation to my forms.

Generic JavaScript validator

Generic JavaScript validator 1.0 (beta) is a simple but powerful cross-browser JavaScript that combines DOM and regulars expressions for the client-side validation of forms. It can validate any number of form on HTML documents. It also supports user defined JavaScript functions.

qForms JavaScript API

qForms JavaScript API is one of the easiest way to program HTML forms.

wForms – A Javascript Extension to Web Forms

wForms is an open-source, unobtrusive javascript library that adds commonly needed behaviors to traditional web forms without the need for any programming skill.

TMT Validator

The TMT validator is a JavaScript library for form validation. It was developed with several goals in mind:

LiveValidation – Javascript Validation Library

LiveValidation is a small open source javascript library for making client-side validation quick, easy, and powerful.

JSValidate: Form Validation Library

JSValidate is a simple library based on Prototype and Script.aculo.us to allow you to do form validation.

You simply use special CSS classes to annotate your form and let the library do the rest.

Validanguage

Validanguage is an inheritance-driven, open source javascript validation library designed to be the most feature-rich, user-friendly validation framework available.

yav – javascript validation tool

Yav is a SIMPLE, POWERFUL and CUSTOMIZABLE javascript-based form validation tool.

Live Javascript Validation

Live Javascript Validation is a complete (radio & checkbox) client-side validation script .

Dexagago Form Validation

A simple Javascript form validation library based on prototype.

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