Maybe not 100hrs, but ~40
Regex Buddy $40. regex tester, debugger and in a lesser extent, regex applier.
(Back when I was looking for something like this, Regex Buddy always popped up in the search results but it didn't look good enough to fire up a windows VM just to use it. The auto-generated explanations based on your regex/test data from regex101 have proven to be tremendous debugging aids.)