To describe the implementation and evaluation of a hospital-initiated, community-based, digital prehabilitation program (My PreHab Program: MPP) for adults referred for elective joint replacement. MPP was implemented July 2022 and comprises a personalised digital health screen that guides the provision of self-management resources. Adults (>18years) referred and accepted, or already waitlisted, for total knee/hip replacement surgery were eligible. Individuals requiring category 1 (urgent) or emergency surgery and those without a mobile phone were excluded. Implementation and intervention outcome measures (program adoption, equity of reach, fidelity, acceptability, appropriateness, feasibility, engagement, preliminary surgical outcomes) were explored via study-specific measures and hospital records. Of those invited (N = 689), 77.8% participated. Participants and non-participants were similar in key demographic variables except regional invitees were more likely to participate than metropolitan (88.0% vs 75.4%, p = .002) and non-participants tended to be older (median age = 69.0 vs 64.0, p = .005). Participants reported on average four modifiable risk factors: most commonly chronic pain (79.1%), obesity (57.3%), and frailty (40.9%). Most participants (80.4%) reviewed all resources provided and reported action/intention to address issues identified (90.9%). Participants perceived MPP as acceptable (3.2/5), appropriate (3.3/5), and feasible (3.4/5). Early trends for participants progressing to surgery (n = 33) show a reduced length of stay (MPP = 4.3, baseline = 5.3 days). MPP demonstrated high adoption, fidelity, and participant engagement. It is acceptable, appropriate and feasible and has the potential to be scaled-up digitally at low-cost. Modifiable risk factors were prevalent and early indications suggest this preoperative intervention may benefit both patients and the healthcare system.