PageSpy is a browser add-on for Internet Explorer, that enables web developers to analyze source code, forms, query strings, cookies and more. PageSpy is added to the context menu of Internet Explorer and available from the right-click menu of every page. The program displays the original HTML source as well as the DOM based source, and allows you to inspect form data, cookie values, scripts/styles, images and more. It also allows you to modify the page size, font, background and other style aspects, and can execute JavaScript code and run regular expressions within the loaded web page.