ShortcutMapper is s visual keyboard shortcuts explorer for popular applications.
The only page of the website is index.html
The application uses ajax calls to load keyboards and application data. These ajax calls will fail using the file:// protocol, so you need to set your browser to allow this. Here’s how to enable that for Chrome: http://stackoverflow.com/a/21413534
Once that’s done, just open the index.html in your browser and you’re off!