This page has a form suitable for copying an IFR clearance and stepping through the route. It can also be used on VFR flights for sequencing through a route.
NOTE: You most likely will not be able to enter the clearance as fast as a controller will read it to you, so you will have to write it down first. But this page will validate the route for you and sequence through the waypoints.
The form:Only destination and route are checked for validity. You may enter anything or nothing in the other fields as you like.
The buttons:Note: The track button is disabled when Option Type B is checked so as to, in the words of AC 120-76C , block the GPS from providing false or misleading information.
NOTE: It is recommended to save your entry so you won't lose it in case the app gets restarted. You can use a simple name like x if you like.