WebFG

Quick Launch

Other Payloads

Click Here

Result:

Put the Switch in RCM, and connect it to your device.
Select either the example payload, or upload one.
Press 'Send Payload!'
On the consent screen that appears, select 'APX' and hit confirm.
If all goes well, the payload will launch!

Mod of WebFG which was ported from fusee-launcher. Thanks to atlas44 for the java port, rajkosto for many of the payloads, ktemkin and ReSwitched for Fusée Gelée and a ton of other things!

This is pretty poorly tested. I just kind wrote it and whatever. I'm not responsible if anything goes wrong!
This does NOT work on Windows due to a limitation in the Chrome implementation of WebUSB (and probably other reasons!)
This does NOT currently work on any browser but Chrome, because they don't implement WebUSB.
On Linux, you might get an access denied error! If you do, you can try creating a file at /etc/udev/rules.d/50-switch.rules
With the following contents:

SUBSYSTEM=="usb", ATTR{idVendor}=="0955", MODE="0664", GROUP="plugdev"
This has been tested and appears to work on Linux, OSX, Android (unrooted) and Chromebooks. Your mileage may vary.
Contact Me: @ksamj

Web Fusée Launcher

Quick Launch

Other Payloads

Result: