JSitor - Test your NodeJS, JavaScript, CSS, HTML online with JSitor code editor.
Bulk Image Downloader - With Bulk Image Downloader you can download full sized images from almost any web gallery.
JS Bin - Sample of the bin:
Vov Picture Downloader - Download pictures from websites.
CodePen - A front end web development playground.
WFDownloader App - A free bulk image downloader application that also serves as a multi-purpose bulk downloader for your PC.