Carbon aerogels that exhibit high specific surface areas, high proportions of mesopores and significant levels of nitrogen doping have been developed for the first time using waste from durian fruit and jackfruit scraps using a chemical-free, green synthesis procedure. According to the Journal of Energy Storage, the electrodes also displayed long-term cycling stability and rapid charge–discharge processes. Both electrodes are attractive candidates for the next generation, high-performance, yet low-cost supercapacitors for energy storage devices derived from biowastes.