elRTE is an open-source WYSIWYG HTML-editor written in JavaScript using jQuery UI. It features rich text editing, options for changing its appearance, style and much more. You can use it in any commercial or non-commercial projects(licensing at end of document). The main goal of the editor is to simplify working with text and formatting (HTML) on sites, blogs, forums and other online services. elFinder is an open-source file manager for web applications. It is also written in JavaScript using jQuery UI. As you can see by looking at the screenshots, its creation was inspired by the simplicity and convenience of the Finder program in Mac OS X.