<p>An energy storage device is one of greatest promising alternative resources to address escalating energy crisis and contribute significantly to economic development in the modern world. Supercapacitors have drawn attention from scientists as a possible substitute for electrochemical energy storage gadgets in recent decades, mainly due to having exceptional efficiency and greatly increased cycle life. Herein, ZnMoO₄/PANI nanocomposites fabricated via hydrothermal route. Several characterizations techniques were utilized to study the physical properties of produced materials. Scanning electron microscope and Brunauer Emmett Teller have been used to examine morphology and surface area (SA) specifications of produced nanostructure. The composite material’s wider active regions, lower resistance, and enhanced SA (132 m² g^− 1) than ZnMoO₄ (78 m² g^− 1) are responsible for better electrochemical activity. A three-electrode arrangement was used for testing, the ZnMoO₄/PANI electrode demonstrated superior charge-storing capacity with a high specific capacitance (C_sp) of 1243.44&#xa0;F g^− 1. Furthermore, the two-electrode asymmetric SC_s device demonstrated) high C_sp of 218&#xa0;F g^− 1 at 1&#xa0;A g^− 1 and outstanding energy density of 57.81 Wh kg^− 1 and power density 690.08&#xa0;W kg^− 1. The ZnMoO_4, PANI, and ZnMoO₄/PANI nanocomposites have R_ct values of (0.103, 0.098, and 0.078) Ω, respectively. Although ZnMoO₄/PANI has a favourable SA, lower obstacles, and faster electrolytic ion transport than its constituent parts, it has excellent electrochemical characteristics. The ZnMoO₄/PANI nanocomposite demonstrated outstanding CV stability during the 10000^th cycle. The results demonstrated that using ZnMoO₄/PANI nanocomposite as energy storage electrode materials would be a desirable and economical strategy.</p>