is there a website to identify different electrical wires?
You mean cables, not wires. A cable can contain many wires.
You really have to identify the connector to identify the cable. For example if you identify a USB connector on each end, then the cable is probably a USB to USB cable (although there are at least 3 different types of USB connector). I'm not aware of any web site, there are too many thousands of different types, with dozens of new ones every day. .