A method for operating a tool in a working environment is provided. Firstly, a website-based working environment for operating a unified tool is provided in a browser. A software development kit is used as at least one standard interface of transmitting data and/or commands between the working environment and a unified inline frame. The software development kit is compatibly executed between the working environment and the unified inline frame. Then, the unified tool is operated in the working environment as the inline frame which is loaded with an adapter is loaded. The adapter is produced as a software module which is the integration of an original tool incompatible with the working environment and the standard interface. The original tool is executed by the working environment through the standard interface.