<p>One major method to achieve energy sustainability and address environmental problems is biofuel synthesis from agricultural waste products. Using this approach, several types of agricultural wastes and byproducts—including animal manure, and forestry residues—are turned into biofuels. These biofuels replace combustion fuels in sustainability and better environmental friendliness. Several pre-treatment methods, biofuel synthesis, and the application of agricultural waste products as biofuel are examined in this paper. Considering the range of agricultural waste materials, the present work also investigates the relevance and implications of biofuel generation on agricultural land. Right now, business and researchers give the enhancement of the viability and efficiency of turning agricultural waste into biofuel top priorities. Moreover, circular economy may help to efficiently lower the waste byproducts' production. Moreover, challenges in increasing production highlight the necessity of creative technologies to supply the growing energy needs and increase biofuel output.</p>