Encoder is a web based code editor application that allows you to create and edit different type of files including HTML, CSS, PHP and many more. It does not require any file install and you can get started with coding job within web browser [IE6 not supported].
Also, it does not require any registeration, just open the editor in your web browser and start coding. It is available in both online and offline versions. Online version has neat interface and subtle look – perfect for distraction free coding. Checkout online version and offline version of encoder by gmeditor.