A system and method for accelerating modernization of user interfaces in a computing environment is disclosed. The method includes receiving request for transforming a current graphical user interface (GUI) corresponding to current programming language and associated software framework to a target GUI corresponding to target programming language and associated software framework. The method includes capturing run time application attributes during an active interactive session of the user interface with user devices. Further, the method includes determining static application attributes from the source code of the current application. The method includes generating application attribute model representing relationships between static application attributes and run time application attributes. The method further includes automatically generating a target application attribute model corresponding to the target programming language and associated software framework based on the application attribute model. Also, the method includes generating a set of executable program code and non-executable assets corresponding to the target programming language and associated software framework based on the target application attribute model. Furthermore, the method includes outputting the generated set of executable program code and non-executable assets on a user interface of the user device.