The Source Code Viewer tool enables you to quickly and easily view the source code of any Web page (as long as the code is not hidden). HTML, CSS, JavaScript, etc. can be viewed if you're interested in how a certain function on a particular site works.
You can also use this to view your own Web page code to find errors or to make sure certain code in your page is actually hidden from others. Just type in the URL you'd like to check below to get your results.