My tasks at work has me looking up the two-letter country codes a lot recently. My goto is the ISO-3166-1 alpha 2 page on Wikipedia, but getting there involves a few clicks, a web-search, and a “find on page.” I wanted an easier way to get to this list, and a much easier way to filter it. I also wanted something that could work as a Vivaldi side panel, so that I can call it up while I’m looking at something else.

The web page: https://2lcc.lmika.app/