HTML Editor and Viewer is a free Chrome add-on created by mizutoki79. Designed specifically for web developers, this program offers a convenient and efficient way to edit and view HTML and CSS code.

The program features a split-screen layout, with the left half dedicated to the editor and the right half displaying the results. The editor allows users to work with two tabs, each capable of editing HTML and CSS separately. This makes it easy to organize and manage different parts of a web project.

One of the standout features of HTML Editor and Viewer is its ability to save and render changes in real-time. By simply pressing Ctrl + S, users can save their edits and see the rendered output in the viewer pane on the right. This allows for quick and seamless testing of code modifications.

It's worth noting that JavaScript is not supported in this add-on. However, for developers primarily focused on HTML and CSS, HTML Editor and Viewer provides a straightforward and efficient editing and viewing experience.

Overall, HTML Editor and Viewer is a powerful tool for web development, offering a user-friendly interface and essential features for editing and viewing HTML and CSS code. Whether you're a beginner or an experienced developer, this add-on can greatly enhance your workflow.