In response to the COVID-19 pandemic medical students in different countries were mobilized to support healthcare systems during the emergency. This study presents the experience of 580 students of a single medical university in Poland who served as volunteers at different healthcare units during the first six months of the first case being recorded in the country (March-September 2020). The mean ± SD hours and days spent on volunteering in the studied group were 52 ± 36 h and 144 ± 126 d, respectively, the collective number of worked hours amounted to 83,460 h. Compared to other fields of study students of medicine engaged in volunteering for more hours and for more days. The main tasks performed by the surveyed group included triage, servicing call-centers for patients and working at the admission ward, hospital clinics, emergency departments and diagnostic labs. The level of fear at the beginning of volunteering was relatively low in the studied group and did not increase over the course. The majority of students received positive feedback from families, friends, patients and healthcare workers, revealed a high level of satisfaction from volunteering (also when experiencing COVID-19-related prejudice), while gaining professional experience and a sense of giving real aid were among the most frequently indicated benefits. The results of the present study demonstrate that although medical students are not essential workers in response to the COVID-19 pandemic, they can be of real assistance to healthcare systems during times of emergency, and should be considered as such in the future in case such a need arises again.