Utilities written by natevw, for natevw.
You may use them too.
Public IP address
too, based on HTTP "Accept" header or ?format parameter
Private IP address
— uses WebRTC to get your local (network) IP address, often useful during web development.
Grid square autolocator / QTH Utility
OSType/FourCC magic number converter
hex ↔︎ rgb color converter
[2d canvas required]
dBm ↔︎ watts converter
Voltage to power converter