<p>Electrochemical energy storage (EES) is a critically important area of technological research worldwide. For efficient power management and efficient energy storage, supercapacitors are promising energy storage devices. This study explores the innovative use of discarded face masks in producing activated carbon, aimed at enhancing supercapacitor performance. With the rise in face mask usage following Covid-19 pandemic, effective disposal methods are imperative. The study explored the conversion of these masks into activated carbon through a controlled pyrolysis process and the materials electrochemical and structural properties were investigated. The resulting activated carbon at current density of 0.5 Ag⁻¹ demonstrates a promising specific capacitance of 118.34 F/g in a two-electrode system in the presence of a 6&#xa0;M KOH electrolyte. This highlights its potential as a cost-effective, eco-friendly electrode material. This research not only contributes to the development of sustainable energy storage solutions but addresses challenges of the waste management.</p> Graphical abstract <p>Discarded face masks activated carbon for supercapacitor applications</p> <p></p>