VT View Source
vt-view-source
About App
This application can be used to view the HTML, CSS, JavaScript or XML sources of webpages and remotely located files. It supports different syntax highlighting themes, adjustable colors, line numbers, text wrapping, in-source active links, mobile and desktop browser modes and other features. The source code can be opened by typing the URL address or using "Share page" functionality of device browser (native Android browser, Opera Mobile, Dolphin, Chrome, Firefox, etc.). VT View Source is free
Developer info