Digital peer support in adults with common mental disorders: a scoping review

Objective: Common mental disorders (CMDs) are leading contributors to global disability, but access to care remains limited. Digital peer support (DPS) combines the benefits of peer support with the flexibility of technology. This review synthesises recent research on DPS for CMDs, including delivery models, user experiences and outcomes in mental wellbeing.Method: A search of four databases (MEDLINE, CINAHL, PsycINFO, SocINDEX) identified peer-reviewed research published 2015–2025 which reported on DPS for adults with CMDs. Data from eligible studies were charted and synthesised. Quality was appraised using the Mixed Methods Appraisal Tool.Results: Forty-four studies were included, mainly of young adults from high-income countries. DPS was delivered through online forums (n = 22), videoconferencing (n = 11), mobile apps (n = 4), and traditional calls or text messaging (n = 7). Peer roles ranged from informal support to trained specialists. Users reported benefits such as reduced isolation, skill development and safety. Barriers included technical challenges, impersonal interactions, and excessive content moderation. Several studies reported CMD symptom improvement.Discussion: DPS shows initial promise, offering emotional and practical benefits for users with CMDs. High-quality studies are needed to evaluate the impact of DPS on CMD outcomes, optimise delivery models and ensure inclusivity.