Baby laughter is one of the most widely reused sounds online because it needs no context or translation to feel joyful. Creators use short giggling clips in comedy edits, family videos, reaction content and wholesome compilations, where a few seconds of laughter can signal happiness, innocence or a lighthearted payoff. Its popularity endures because the sound is instantly recognisable and emotionally positive, making it a reliable choice for short-form video, memes and presentations that want a warm, feel-good moment without words.