Heardle is a word-guessing game similar to the popular game "Wordle." In Heardle, players have to guess a five-letter word within six attempts. After each guess, the game provides feedback by indicating which letters are correct and in the right position, which letters are correct but in the wrong position, and which letters are not in the word at all. Players use this feedback to refine their guesses and ultimately identify the target word. Heardle gained popularity as a fun and challenging word puzzle game.