Free spins on sign-up with no deposit required are a popular promotional offer in online casinos, allowing new players to try out games without risking their own money. Upon registration, players receive a set number of free spins, typically on selected slot games, enabling them to win real cash without making an initial deposit. This enticing offer not only attracts new users but also provides a risk-free opportunity to explore the casino's offerings and potentially enjoy some winnings. Always check the terms and conditions to understand wagering requirements and eligible games.