Page Ruler is a browser extension designed for the Chrome platform that allows users to draw a ruler on any web page, enabling them to easily check the alignment of page elements. This extension is particularly useful for web developers and designers who need to ensure that their UI elements are perfectly aligned.

Using Page Ruler is straightforward. After installing the extension, users can simply click on the extension icon in the browser toolbar to enable it. Once enabled, users can click and drag a line on the web page to draw a ruler. The ruler can be adjusted by dragging the line to the desired position.

In addition to its basic functionality, Page Ruler also offers customization options. Users can access the options menu to change the color and style of the ruler, allowing for a personalized experience. This extension provides a quick and efficient way to check the alignment of UI elements, helping users create professional and well-designed web pages.