Persistent non-cancer pain affects more than one in five New Zealanders. Māori, people living in areas of high deprivation and older adults are at greatest risk. The best evidence for longer-term benefits of persistent pain management are for group-based, multidisciplinary pain management programs (PMP) that focus on behavioural interventions. However, there is poor access to multidisciplinary PMP for people living in remote and rural areas due to transportation costs and long waiting lists. Web-based technologies are an alternative way to deliver behavioural interventions. Although online-delivered interventions have been successful in improving persistent pain, none were developed with patient co-design nor compared to group-based, in-person PMPs. We plan to do both. The primary aim of this project is to co-create an evidence-based, culturally appropriate, online-delivered intervention called iSelf-help and evaluate its clinical and cost-effectiveness compared to group-based, in-person delivered PMP in reducing pain-related disability at 6-months.