Inclusion Criteria:  13-17 years of age, A principal diagnosis of mild or moderate MDD Willing to be randomized to either of the three treatment arms, Basic proficiency in Swedish, both adolescent, and a participating caregiver Regular access to a desktop, laptop computer connected to the internet, as well as a mobile phone, If using medication with antidepressants, central stimulants, and neuroleptics it has to be unchanged at least 6 weeks prior to inclusion, A minimum of one caregiver that is able to co-participate in the treatment  Exclusion Criteria:  Immediate risk to self or others, requiring urgent medical attention, such as suicidality, or repeated self-injurious behavior. Other psychiatric disorders or social problems requiring other actions at first hand (e.g., diagnosis of organic brain disorder, intellectual disability, psychosis, bipolar disorder, eating disorder, or alcohol/substance dependence; ongoing bullying in school, abuse and/or neglect in the family; high and prolonged absence from school). Previous psychological treatment for MDD for a minimum of at least 3 sessions within the last 12 months prior to assessment. Current use of benzodiazepines. Ongoing psychological treatment for any other psychiatric disorder.