Transverse thermoelectric generation produces an electric field (E) perpendicular to an applied temperature gradient (∇T), which offers the potential to create simple two-dimensional thermoelectric devices that overcome some of the challenges facing conventional Seebeck-effect-based devices. One of the well-known transverse thermoelectric phenomena is the anomalous Nernst effect (ANE) observed in magnetic materials, which provides additional control of the thermoelectric output through the magnetization. The simple device structure is particularly attractive for creating novel heat-flux sensors, with potential advantages including improved durability and flexibility, lower thermal resistance, and reduced manufacturing cost. We prepare various magnetic thin films and investigate their thermoelectric properties. We also fabricate prototype ANE-based heat-flux sensors using these materials.