This paper discusses changes in the field of maintenance brought by the Fourth Industrial Revolution - Industry 4.0. Main pillars of the Industry 4.0 are as follows: digitization, interconnection, linking and visualization of all corporate parts, starting from production, through maintenance, and ending by logistics. Maintenance is one of the areas affected most by these changes. It is not enough to monitor only certain machine parameters and assess their status –the offline diagnostics. Monitoring of all machines and measurable parameters is requested and, in addition to it, it is advisable to ensure visualizationfor the users –the online diagnostics. Technical diagnostics belongs to important aspects for ensuring maintenance, mainlythe preventive, predictive and proactive maintenance. Vibrodiagnostics is one of the most widespread diagnostics in the field of mechanical engineering, where the signal from the source of vibrations carries the information concerning the cause of vibrations, and its analysis can establish, even well in advance, the emerging or developing defect or damage. This article describes the differences between the online and the offline vibrodiagnostics and analyzes the results of specific measurements. Online diagnostics visualization with the possibility of its use in the maintenance sector is demonstrated here as well.