JImageFilter is a JFileUpload add-on that adds power of an image scaler to generate thumbnails on-fly before upload. It saves bandwidth and improves upload performances. Features: JImageFilter works with all main features of JFileUpload (progress bar, redirect after upload, large upload, cross browsers support and more). It could be integrated with regular JFileUpload frontend, JImageUpload previewer UI and even JBatchUpload. It provides the following: