Additive manufacturing (AM), also known as 3D printing, is a process that creates three-dimensional objects from digital models. It involves converting computer-aided design (CAD) files into stereolithography (STL) files, which are then sliced into layers for printing. AM has gained significant attention due to its ability to produce complex shapes and reduce material waste. It is widely used in various industries, including aerospace, medicine, and architecture, for creating lightweight structures, medical implants, and architectural models. The process has evolved over the years, with technologies such as stereolithography (SL), fused deposition modeling (FDM), selective laser sintering (SLS), and electron beam melting (EBM) being developed. These technologies allow for the production of a wide range of materials, including metals, ceramics, and polymers. However, challenges remain, such as the need for post-processing, limited material compatibility, and the need for higher accuracy. Despite these challenges, AM is expected to play a significant role in the future of manufacturing due to its potential for cost-effective production and customization. The review discusses various AM processes, their applications, and the ongoing research aimed at improving their efficiency and accuracy. It also highlights the growing adoption of AM in different sectors, including healthcare, where it is used for creating customized implants and prosthetics. The review concludes that while AM is still in its early stages, it has the potential to revolutionize manufacturing by enabling the production of complex and customized parts with high precision.Additive manufacturing (AM), also known as 3D printing, is a process that creates three-dimensional objects from digital models. It involves converting computer-aided design (CAD) files into stereolithography (STL) files, which are then sliced into layers for printing. AM has gained significant attention due to its ability to produce complex shapes and reduce material waste. It is widely used in various industries, including aerospace, medicine, and architecture, for creating lightweight structures, medical implants, and architectural models. The process has evolved over the years, with technologies such as stereolithography (SL), fused deposition modeling (FDM), selective laser sintering (SLS), and electron beam melting (EBM) being developed. These technologies allow for the production of a wide range of materials, including metals, ceramics, and polymers. However, challenges remain, such as the need for post-processing, limited material compatibility, and the need for higher accuracy. Despite these challenges, AM is expected to play a significant role in the future of manufacturing due to its potential for cost-effective production and customization. The review discusses various AM processes, their applications, and the ongoing research aimed at improving their efficiency and accuracy. It also highlights the growing adoption of AM in different sectors, including healthcare, where it is used for creating customized implants and prosthetics. The review concludes that while AM is still in its early stages, it has the potential to revolutionize manufacturing by enabling the production of complex and customized parts with high precision.