Fancy Fields is a jQuery plugin to customize form elements easily. Text boxes, text areas, radio buttons, checkboxes, select items etc.
Bootstrap Form Helpers is a set of jQuery plugins that extends Bootstrap's components.
Here are some of custom plugins.
Alpaca is the Easy Forms Engine for jQuery / Bootstrap. It is built around JSON schema to keep things simple. Using Alpaca, you can express your forms object model, types, properties and validation logic.
Alpaca comes pre-configured to work nicely with the following web frameworks:
jQuery validation engine is a jQuery plugin aimed at the validation of form fields in the browser (IE 6-8, Chrome, Firefox, Safari, Opera 10). The plugin provides visually appealing prompts that grab user attention on the subject matter.
Pliant is a jQuery validation plugin that allows easy extending/overriding of rules, as well as defining field validation by html comments.
nextVal is an easy-to-use, flexible and robust form validation plugin for jQuery.
Each input should have a
validate attribute. Elements can also have placeholder and title attributes. Also
validate attribute can be passed multiple values.
Form Accordion is a jQuery plugin for easily hiding and revealing related form fields conditionally.
jQuery.my allows comprehensive validation and conditional formatting of HTML inputs and static fields. Plugin recalculates and redraws interdependent controls automatically.
Formly is a jQuery Plugin for easily adding cross-browser styling and validation to forms. Formly makes adding forms to your site a bit more exciting. Easily add style, validation, and a more impressive user interaction with a single function.
The jQuery Form Plugin allows you to easily and unobtrusively upgrade HTML forms to use AJAX. The main methods, ajaxForm and ajaxSubmit, gather information from the form element to determine how to manage the submit process. Both of these methods support numerous options which allows you to have full control over how the data is submitted.
jQuery Validation Plugin makes simple clientside form validation trivial, while offering lots of option for customization.
The plugin comes bundled with a useful set of validation methods, including URL and email validation, while providing an API to write your own methods. All bundled methods come with default error messages in english and translations into 36 locales.
jq-idealforms is a small framework to build awesome responsive forms. It's built on top of jQuery and LESS.