Telehealth and eHealth interventions for posttraumatic stress disorder.

•Telehealth and eHealth tools may improve mental health services for trauma survivors.•A wide array of eHealth tools can be used to overcome common barriers to care.•Technologies such as video teleconferencing and computerized CBT have strong evidence.•Newer tools such as mobile apps are popular but have limited evidence of efficacy.•The promise of technology-based interventions has not yet been fully realized.