I’m running on a scant amount of physical gear and was looking to fiddle with CC commands on Norns (plus I was looking for an excuse to use LitElements).
So I whipped up this virtual MIDI controllerbank using Web MIDI (currently has limited browser support) to control any MIDI device that can be connected to a computer (USB mostly, but limited Bluetooth MIDI support). It’s admittedly designed for an audience of 1, but I thought others might find it useful.
Caveat usor.
Sixteen or more or less controllers, Web MIDI over USB and maybe Bluetooth

You can also create an “independent app” with Chrome
Summary
- Open Chrome.
- Navigate to the site
- At the top right, click More.
- Click More Tools.
- Click Create shortcut.
- Enter a name for the shortcut and click Create.
I made some templates for controlling a couple of devices in my arsenal
Source code on the GitHub.
1 Yes, the name is an homage to the great 16n Faderbank.