This article describes the utilization of lignin-based biopolymers and provides a brief explanation of lignin's chemical structure, extraction, and processing. Using lignin as a natural feedstock is an excellent idea because it is cheap, plentiful, and efficient as petroleum-derived goods. In plants, lignin, the world's second-most abundant natural polymer, boosts mechanical strength by covalently linking to cellulose and hemicellulose. Bio-renewable polymers have emerged as solid contenders as an alternative to traditional metallic and organic materials. It is increasingly beneficial for innovating innovative materials in the market and business because of their biocompatibility, biodegradability, and low production costs. Lignin extraction for biodegradable products is discussed in detail in this article. This review also discusses how lignin's antioxidant and antibacterial properties came into play in biological applications. In addition, the manuscript also discusses lignin's uses in pulp and paper, medicine, and other industries. As a bonus, lignin has the potential to be a rich source of high-performance polymers, energy-dense fuels, phenolic chemicals, carbon fibers, and value-added commodities that can be used in place of fossil-fuel-based products. This research project aims to review current achievements in lignin conversion and its usage as an energy source. This article covers Lignin conversion research in this article, including recent breakthroughs.