The simply the best collection of validation scripts
Makes simple clientside form validation easy with plenty of customization options. Bundled with a useful set of validation methods, including URL and email validation, while providing an API to write your own methods.
Uses the HTML5 required and pattern attributes to do validation when the browser does not support these features.
A file uploader with multiple file selection, drag/drop support, progress bar, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform that supports standard HTML form file uploads.