Systems and methods are provided for freezing operation of dynamic code of a run-time web page, such as freezing JavaScript code of a web page. A software application that is being employed for analyzing a web page includes functionality to enable a user to freeze operation of dynamic code, such as JavaScript code, of the run-time page, thereby allowing the user to view, analyze, and/or modify the page's output presentation and/or underlying source files at the given state at which the page was frozen. Such software application may comprise a web page authoring tool or a client-side analysis tool (e.g., testing tool), as examples.