After a guess, Wordle colors each tile. Enter what you learned: put green letters in their exact slots (use _ for the slots you don't know yet), list yellow letters that are in the word but in the wrong place, and list grey letters that aren't in the word at all. The helper returns every valid word that fits, ranked with the most common answers first.
Say the answer pattern is c__e_ with a yellow r and greys t, s, l, n, d. Enter those and you'll get a short, ranked shortlist instead of guessing blind. It's a helper, not a spoiler — you still pick the guess.
Outside the daily puzzle, the same engine powers the word unscrambler, the crossword/pattern solver, and the anagram solver. Tile-game player? The Words With Friends finder adds point values.