Herein, we present a comprehensive investigation into the in-situ synthesis and performance analysis of polyaniline (PN) composites with ZnO (PNZ), Fe2O3 (PNF), and ZnFe2O4 (PNFZ) dopants as electrode materials for symmetrical supercapacitors. Through SEM, EDX, FTIR, and UV-Vis analyses, we characterized the composition and morphology of the active electrode materials. Furthermore, the electrochemical properties of these composite electrodes were extensively evaluated using cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy. The combination of material analysis and Furthermore, PNFZ showed the highest capacitance rention of ~90% over 4,000 cycles.