<p>The growing progress in modern electronic and optoelectronic technologies has significantly increased the need for dependable energy storage systems with enhanced energy density and long operational life. Among various energy storage options, supercapacitors have gained considerable attention due to their remarkable features such as high-power density, fast charging and discharging rates, and excellent cycling stability. However, conventional supercapacitors inherently low energy density remains a major challenge, restricting their broader applications. This limitation has driven extensive research efforts toward developing advanced supercapacitor technologies with enhanced performance. Asymmetric supercapacitors (ASCs), which utilize two distinct electrode materials, offer a significant benefit by extending the operational voltage window, thereby substantially improving energy density. Metal ferrites are especially noteworthy for their outstanding properties, including high electrical conductivity, low cost, excellent optical properties, natural abundance, and excellent electrochemical performance. Metal ferrites have been utilized as key components in supercapacitor (SC) applications, while the multivalent cations and inherent magnetic nature of metal ferrites are an attractive feature for energy storage applications. This review focuses on the latest metal ferrite-based materials for ASCs, including the synthesis methods of ferrites, the working principle of ASCs, the role of ferrites in ASCs, and the electrolytes used for ASCs. In this review, we have highlighted the metal ferrites such as NiFe₂O₄, ZnFe₂O₄, CoFe₂O₄, CuFe₂O₄, and MnFe₂O₄.</p> Graphical abstract <p></p>