HTML Purifier : HTML Purifier is a standards-compliant HTML filter library written in PHP. HTML Purifier will not only remove all malicious code (better known as XSS)...
cssQuery() : cssQuery() is a powerful cross-browser JavaScript function that enables querying of a DOM document using CSS selectors. All CSS1 and CSS2 selectors ar...
Parsley.js : Javascript forms validation.
Powerful, UX aware & Dead simple.
FormLinter : Increase your form conversions by fixing common usability issues
Enter a URL. FormLinter will find a form on the page and let you know if it can be im...
Pimple : Pimple is a small Dependency Injection Container for PHP 5.3 that consists of just one file and one class (about 50 lines of code).
This PHP package provides methods to create, validate and render HTML forms.