PixelGuide is a free Chrome add-on developed by nakajmg that brings a Photoshop-like rulers and guides interface to web pages. With this add-on, users can easily create and manipulate rulers and guides on any web page, allowing for precise measurements and alignments.

One of the key features of PixelGuide is its ability to mimic the rulers and guides functionality found in popular graphics editing software like Photoshop. Users can drag and drop rulers onto the web page, adjust their position and length, and even change the units of measurement. Additionally, guides can be created by simply clicking and dragging on the rulers, making it easy to align elements with precision.

PixelGuide also offers customization options, allowing users to change the color and opacity of the rulers and guides to suit their preferences. The add-on is lightweight and does not affect the performance of the web page.

Overall, PixelGuide is a handy tool for web designers and developers who need to work with precise measurements and alignments on web pages. It brings the familiar rulers and guides interface from Photoshop to the web, making it easier to create pixel-perfect designs.