With this tool you can easily remove duplicate items from a list. You could use it e.g. for removing duplicate TB-Codes before logging them after an Event or something similar.

The Items will be split at anything what is not alphanumeric (everything what matches [^a-zA-Z0-9]+). A # introduces a comment, a line starting with # will be ignored and if anything comes before a # the line will be cut at the index of the #.