An online casino bonus code no deposit is a promotional offer that allows players to enjoy casino games without having to make an initial deposit. By entering a specific code during registration, players can receive free credits or spins, enabling them to explore the casino's offerings risk-free. This type of bonus is particularly appealing to newcomers, as it provides an opportunity to test the waters and potentially win real money without any financial commitment. However, it's essential to read the terms and conditions, as wagering requirements and game restrictions may apply.