Innovation in coding technology continues to become more computerized and integrated into the production line. Laser coding is mostly used to differentiate products and mark them accordingly. Laser coding functions by removal of surface coating from the packaging or product; this results in permanent changes in the surface of the product. Laser coding is a non-contact printing method and ensures quality marking. In laser technology, the galvanometer enables laser coding and making mark on moving or static products. Laser coding can be done on various materials such as glass, paper, foils, plastic, cardboard, coated metals, etc. Laser coding does not contain any inks or chemicals; it is cost-efficient and a low maintenance and eco-friendly method for marking the product. The laser coder software allows users to do barcoding, change and delete text easily, add graphics, etc. The substitutes for laser coders are continuous inkjets and thermal inkjets. In packaging, laser coding is usually used for marking serial or batch number, expiry dates, etc. Laser coding is done in the end after the production process. The laser coder is used for marking various materials in the packaging industry, such as paper, cardboard, and polymers.