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)...
PHP unified diff patcher : A powerful class which allows to create and merge unified diff patches into any file. Fully written in PHP, uses the GNU standard unified diff format ...
Photon : UI toolkit for building desktop apps with Electron.
Web Forms : Web Forms 2.0 Cross-Browser Implementation
Parsley.js : Javascript forms validation.
Powerful, UX aware & Dead simple.
This PHP package provides methods to create, validate and render HTML forms.