I didn't see a tool for this out there, so I thought I'd write this as a mobile-friendly web page hosted on GitHub pages that can be used from a browser. 100% JavaScript.
DayZ community server admins sometimes create "safe zones" on the map where players can go to trade or buy a house. Admins often want to remove all the hostile spawns from that safe zone but there is no easy way to find all the edits that need to be made.
