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Microalgae as feedstock are the potential third generation biofuels. Microalgae are photosynthetic microorganism which requires light, carbon-di-oxide, nitrogen, phosphorous, and potassium for growth and to produce lipids, proteins and carbohydrates in large amounts over short a periods of time. The production of biofuels from microalgal is a viable alternative due to their easy adaptability to growth conditions, possibility of growing biomass either in fresh or marine waters. Hence the current project was designed to elucidate the biodiesel producing ability of blue-green algae such as Spirulina platensis and Green algae Chlorella vulgaris. The selected algae were cultivated in suitable growth media such as modified Zarrouke medium and bold basal medium, respectively. The Spirulina platensis and Chlorella vulgaris were mass cultured for 8 days then harvested using 50 micron nylon filters and dried in sunlight to obtain dry biomass.