In comparison to chemical surfactants, biosurfactants have several advantages, including lower toxicity, higher biodegradability, better environmental compatibility, higher foaming, high selectivity, and specific activity under extreme conditions like temperature, pH, and salinity. Biosurfactants are surface-active biomolecules produced by microbes (bacteria, fungi, and yeast). Nearly majority of the surfactants that are currently on the market were created chemically. Due to the wide range of functional qualities of biosurfactants and the extensive synthetic capacities of microorganisms, interest in them has surged recently. Applications for microbial biosurfactants in environmental protection include improving oil recovery, containing oil spills, biodegradation, and detoxifying of soils and industrial effluents that have been contaminated with oil. The pharmaceutical/medical, food, cosmetic, pesticide, oil, and biodegradation industries may use biosurfactants made by microorganisms. Focused on three key areas in this review article: the many forms of biosurfactants, the group of bacteria engaged in their synthesis, and the use of microbial biosurfactants.