Fossil fuels are used increasingly day by day everywhere on the globe and related to environmental issues like the environmental problems and heating. During this time, attempts are made to seek out sustainable different energy source which is affiliated with fossil material. The foremost important fossil material is plant biomass, especially wood, of the premise of cellulose percentage. However, those materials constituent of lignin have a content of 18-30%. Lignin is mainly used for fuel and has many valuable applications like, nanoparticles synthesis, polycarboxylic acid, supercapacitor electrode, photocatalyst, photovoltaic, etc. Recently, researchers highlighted more sustainable bioenergy production technologies. This review paper focused on different categories application of lignin within the industrial sector which could be a totally sustainable energy conversion.