In this communication, we demonstrated the use of CuSe₂ nanoneedles grown on copper foil as a binder-free electrode for supercapacitors. Studies using X-ray diffraction, laser Raman spectroscopy and field emission scanning electron microscopy confirmed the formation of crystalline CuSe₂ nanoneedles on the surface of copper foil. Cyclic voltammetry and electrochemical impedance spectroscopy revealed the pseudocapacitive nature of the CuSe₂/Cu electrode. The galvanostatic charge–discharge analysis showed that the CuSe₂/Cu binder-free electrode delivered a high specific capacitance of about 1037.5 F/g at a constant current density of 0.25 mA/cm².