NetBeans is a widely used software development platform for building web, mobile, and desktop applications with Java, JavaScript, HTML5, and more. It has been supported by Oracle (and its predecessor, Sun) since 1999, and in October 2016 moved to the Apache Foundation for open governance, and simplified and streamlined community contributions. Netbeans isn't exactly a drag-and-drop web design application, but it's a robust web-aware IDE. It's a great choice if you're developing web apps, or if you just enjoy coding for the web.