Digital interventions for prosocial behavior are increasingly being studied by psychologists. However, academic findings remain largely underutilized by practitioners. We present a practical review and framework for distinguishing three categories of digital interventions--proactive, interactive, and reactive--based on the timing of their implementation. For each category, we present digital, scalable, automated, and scientifically tested interventions and review their empirical evidence. We provide tips for applying these interventions and advice for successful collaborations between academic researchers and practitioners.