The web-based Cloud9 integrated development environment (IDE) enables developers to more easily create JavaScript-based web apps, and since it is cloud-based itself, developers can use it for their web app projects using just a web browser.
Cloud9 is first and formost an editor, and includes syntax highlighting for many languages, including JavaScript, CoffeeScript, HTML, XML, CSS and more. It also includes JavaScript debugging functionality, integration with GitHub, and project deployment options. One known limitation is that there isn’t a way to easily integrate existing JavaScript frameworks, and starting a project from scratch requires quite a few tasks.