This Adobe CC project is based on a similar shortcut mapper on GitHub built by Waldo Bronchart. His map includes dozens of different programs (Photoshop, Lightroom, Autodesk Maya etc) but it also has a slightly smaller interface which is a bit difficult to read from a distance.
You can switch between Windows, OS X, and Linux keyboards based on whichever OS you’re running.
The most common modifier keys are Shift, Alt, CTRL/Control, and the OS key(Apple key/Windows key). You can actually press & hold any of these keys while on the site and your keyboard map will change accordingly.
This Project on Fastprint
For example, I want to find how to cycle through the pen tools.
I know hitting the “p” key gets me the pen tool, but how do I cycle through them without needing my mouse? Well go down to the search bar and type “cycle” – an autocomplete list pops up with tons of results.
Scroll through the autocomplete box until you find the shortcut for cycle pen tool. In this case it’s SHIFT+P – great! No need to guess by hitting a bunch of keys hoping to find the answer.