Nanomaterials are widely used in engineering, medical, and environmental research, theirmanufacture is a highly relevant topic. These days, physical, chemical, and biological processesare used to create nanomaterials. However, the physical and chemical processes frequently resultin unjustified consequences including higher energy usage, harm to the environment, andpotential health risks. Green synthesis has several benefits over conventional techniques andreduces metal ions by employing plant extracts rather than chemical agents made in an industrialsetting. These include lower expenses, less environmental effect, and enhanced safety for theenvironment and public health. The green production of zinc oxide nanoparticles is a viablealternative to traditional chemical synthesis, as this review shows. Environmental issues andcontamination are associated with the use of conventional chemical synthesis. With a variety ofuseful applications, green synthesis has become a viable and eco-friendly alternative.