People thrive in compassionate environments. For autistic people, their environments are often non-conducive to care and support. We propose that cultivating autistic people's self-compassion may be an antidote to the mental health difficulties arising from environmental causes. The current study aimed to pilot a self-guided online self-compassion program for autistic adults to assess its feasibility, acceptability, and outcomes related to completing this program. The program was co-produced with autistic individuals. Thirty-nine autistic adults aged 20-77 years (M[subscript age] = 45.28, SD[subscript age] = 11.92) completed the online program. They also provided feedback about their self-compassion practices every week. They completed pre- and post-intervention online surveys measuring self-compassion, symptoms of anxiety and depression, positive and negative affect, emotion regulation difficulties, and psychological well-being. As hypothesized, there were significant group improvements in all outcome measures. Preliminary results suggest that the program is feasible and accepted by participants. Approximately half of the autistic participants reported experiences of backdraft, which are adverse reactions associated with self-compassion practices. Based on our findings, we provided clinical recommendations on how self-compassion can be taught to autistic adults.