Wordle Words Left
This calculator takes what you know about your current Wordle word and tells you just how many possible words are left for you to guess. You can use it to tell if there's really just the word left or if there's tons of possibilities you're missing. You can see if you narrowed it down to the only answer or if you just got lucky.
Note that while historically there has been a list of common words used for possible answers and a second list of rare words you could guess but which Wordle would not use for answers, New York Times has changed the original Wordle word list and made it so that the word is manually chosen each day by an editor at her discretion. On rare occasions, the chosen answer has been a word so rare it is not even considered a word on other days, which this tool cannot predict. Also note that Wordle has not reused words thus far, making the actual answer list quite short by now. Technically, to filter down to the actual answers, you would have to go through the past answer list to eliminate those as well, but that seems very against the spirit of the game.