Simple Source Viewer:

Let’s you see the source code of any public webpage.

Using this app, you simply type in the URL address or IP address of a web page, then hit the enter button. It takes about 3-5 seconds to download the source code of the app, then displays it. Note that this can only show the HTML, JavaScript, and CSS of the page (any client-side coding), and cannot show server-side coding (PHP, SQL) due to the fact that server-side scripting cannot be retrieved through your computer as it exists on the server, hence the name “server-side scripting.”

You can test the app out by typing in my website URL http://umer936.com or http://google.com or any website you choose.

Have fun with it, but remember, no one likes people who just copy scripts and code from other people, so don’t steal code! :D