In the present work, CoFe₂O₄ nanoparticles were synthesized using a simple solution combustion method employing curry leaves as a natural fuel. The synthesized material was characterized to evaluate its structural, morphological, optical, and compositional properties using X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR), ultraviolet–visible (UV–Vis) spectroscopy, and energy dispersive X-ray spectroscopy (EDS). The characterization results confirmed the successful formation of CoFe₂O₄ nanoparticles with well-defined morphology and characteristic functional groups. The electrochemical performance of the prepared material was investigated using 1 M KOH electrolyte solution to study its reversibility, impedance behaviour, and super capacitive properties. The results demonstrated that CoFe₂O₄ significantly improved the electrode material's electrochemical reversibility and enhanced its specific capacitance. Furthermore, the electrode showed excellent cycling stability with approximately 96.78% capacitance retention after 200 charge–discharge cycles, indicating its promising potential for supercapacitor and energy storage applications