Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.
Full Featured HTML Framework For Building iOS & Android Apps
File Upload widget with multiple file selection, drag&drop support, progress bars and preview images for jQuery. Supports cross-domain, chunked and resumable file uploads and client-side image resizing. Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads.
An HTML5 saveAs() FileSaver implementation
An enterprise-class UI components based on Ant Design and Angular. 🐜
Ajax with less suck - (and node.js HTTP client to match)
An extended Bootstrap table with radio, checkbox, sort, pagination, and other added features. (supports twitter bootstrap v2 and v3)
Application Architecture for Building User Interfaces
A datepicker for @twitter bootstrap forked from Stefan Petre's (of eyecon.ro), improvements by @eternicode
Selectize is the hybrid of a textbox and <select> box. It's jQuery based and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc.
Internationalize React apps. This library provides React components and an API to format dates, numbers, and strings, including pluralization and handling translations.
Free and Open source Web Builder Framework. Next generation tool for building templates without coding
Leverage the future of the web platform today.