Applause has been a staple of radio, television and theatre for decades, used to signal approval whenever a performer, winner or speaker finishes a moment on stage. Online, the same crowd clapping clip became a handy shortcut for creators who do not have a live audience, letting them add instant celebration to short videos, streams and reaction edits. It remains popular because it is instantly understood in any language, needs no explanation, and turns an ordinary success into a shared, public moment.