Biodiesel has gained popularity as a possible alternative to fossil diesel. However, one of the primary issues with the industry’s method of producing biodiesel is the inability of homogenous alkali catalysts to be recycled and the waste that is produced as a result of the water washing that follows. Due to their distinctive qualities, including non-volatility, great solubility for a wide range of organic and inorganic compounds, structural tenability, environmental friendliness, and wide liquid temperature range, ionic liquids are one of the finest alternatives to alkali catalysts. However, their use has been constrained by their high viscosity and challenging recovery. To get around these problems, heterogenization of ionic liquids on solid supports has recently been proposed. When it comes to creating sturdy supports with high porosity and specific surface area, nanoporous materials have excelled. The design of ionic liquids deposited on nanoporous materials as catalysts for the manufacture of biodiesel is reviewed in this research