A sign-up bonus with no deposit is an enticing offer from online casinos and betting sites, allowing new users to claim rewards without having to make an initial deposit. This type of promotion typically includes free spins or bonus cash, enabling players to explore the platform and try out games risk-free. It serves as an excellent way to attract new customers, providing them with a chance to win real money while familiarizing themselves with the site’s features. However, it's essential to read the terms and conditions, as wagering requirements may apply before cashing out any winnings.