An Instant No Deposit Bonus is a promotional offer from online casinos that allows players to receive bonus funds or free spins without having to make an initial deposit. This type of bonus is designed to attract new players, giving them a risk-free opportunity to explore the casino's games and features. Typically, players can claim this bonus immediately upon registration, enabling them to start playing right away. However, it's important to read the terms and conditions, as wagering requirements and withdrawal limits may apply.