In this post we will discuss about how to create an application page
in SharePoint 2013 using Visual Studio 2012. Previously I have explained how to create an application page in SharePoint 2010 using visual studio 2010 [Read here
Follow below steps to create an application page in SharePoint 2013:
Open Visual Studio 2012, Choose SharePoint from the left side and then choose SharePoint 2013 project template. Give a name and Click on OK.
In the next page, Select Deploy as a farm solution and click on OK.
Now Right click on the Project and click Add New Item and from the New Item dialog box select Application Page and give a name for the application page and click on OK.
Now you can put any control if you want in the application page and also you can write the corresponding code.
Now you can build and deploy the project. And once deployment will over then the application page will be available in layouts folder (C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\TEMPLATE\LAYOUTS).
Now you can browser the page like below: