A library for showing previews and related information of images selected for upload.
Simple Ajax Uploader
A plugin for cross-browser Ajax file uploading. Supports drag and drop, CORS, and multiple file uploading with progress bars. Works in IE7-9.
Valum's File Uploader
Multiple files upload, progress-bar in modern browsers, falls back to hidden-iframe-based upload in older IE. Not maintained any longer, but still good.
Feature rich cross-browser HTML5 AJAX file uploader. Drag & drop support and iframe fallback for older browsers.