A $100 no deposit bonus is an enticing offer from online casinos and sportsbooks, allowing new players to explore games or place bets without needing to make an initial deposit. This bonus provides a risk-free opportunity to test the platform, experience various games, and potentially win real money. Players can simply sign up, claim the bonus, and start playing, making it an attractive option for those hesitant to invest their own funds right away. However, it's essential to read the terms and conditions, as wagering requirements and restrictions may apply.