Time of Flight Diffraction (TOFD) is an advanced non-destructive testing technique used primarily to detect and assess discontinuities in welded joints. Unlike traditional ultrasonic methods, TOFD relies on the analysis of the transit time of diffraction waves, allowing for highly precise determination of the size and location of defects, along with accurate recording of the test results. Thanks to its high accuracy and repeatability, TOFD is used in industries such as energy, nuclear, petrochemical, and steel structures. This solution increases safety and enables more informed decision-making regarding component operation.