imgix
imgix.js is a javascript library that allows you to easily use the imgix API to make images on your site or app responsive to device size and pixel density. imgix.js allows for intuitive use of imgix features such as text formatting, color palette extraction, color adjustments, effects, and watermarking. imgix.js requires an imgix account to use your own images. Sign up at imgix.com
Widen Enterprises
Multiple file upload library with support for all major browsers. Many features such as drag & drop, auto & manual retry, file chunking, auto-resume, and more! Does NOT use Flash or Java. Highly configurable. A no-dependency version is ALSO available in the downloads section.
Cloudinary
Cloudinary streamlines your web application’s image manipulation needs. Cloudinary's cloud-based servers automate image uploading, resizing, cropping, optimizing, sprite generation and more. Cloudinary's jQuery plugin allows direct uploading from the browser to the cloud and dynamic cloud-based image transformations and effects.
Sebastian Tschan
File Upload widget 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 (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.
Webshim – polyfills jQuery with many HTML5 features
Alexander Farkas
modular capability-based polyfill loading libary, which extends jQuery with HTML5 features in legacy browsers
Matthew Holt
Powerful CSV parser that converts CSV to JSON and JSON to CSV. Supports web workers and streaming large files. Gracefully handles malformed input.
MatÃas Gagliano
A jQuery Ajax transport that uses the iframe technique, allowing to asynchronously send files and data even if FormData, the File API or XMLHttpRequest aren't supported.
Customformsjs – webforms made by engineers
Mitermayer Reis
Javascript Library to aid on creation of beautiful form elements
Ravishanker Kusuma
jQuery Upload File plugin provides Multiple file Uploads with progress bar.Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.
Ludo van den Boom
jQuery plugin for displaying a tree structure in a (HTML) table, i.e. a directory structure or a nested list.