TiO₂ nanoparticles are generally known to have low capacity and poor cycle life when used for supercapacitor electrodes. This work improved the overall energy storage ability of TiO₂ nanoparticles by growing them on an activated starch template, which creates polyhydroxylated points that act as nucleation sites for stable nanoparticle growth. The calcined products were studied for phase changes using XRD, TEM, and Raman. Consequently, a balance between the anatase and rutile phase in the TiO­₂ nanoparticles led to the highest energy storage capacity. The calcination resulted in lowered crystallite sizes, and the activated starch template imparted surface oxygen groups that contributed to enhanced supercapacitive performances. In this work, the TiO₂ synthesized on an activated starch template is referred to as A-TiO₂, the TiO₂ grown on un-activated starch was U-TiO_2, while the reference TiO­₂ synthesized without a template was referred to as unsupported-TiO₂. A-TiO_2, which has 72% anatase and 28% rutile, had the best result and showed specific capacitance as high as 388 Fg^-1, energy density as high as 194 WhKg^-1, a power density of 4473 WKg^-1, ESR of 0.53 ohms, and retention capacity of 99% after 20000 cycles.