GitHub Raw HTML Preview is a Chrome extension designed to enhance the user experience on GitHub by allowing users to instantly preview HTML, CSS, JavaScript, and JSON files from public repositories. With its straightforward functionality, it adds a convenient 'Preview' button next to the 'Raw' option on file pages, enabling users to view the rendered output of these files without any hassle. The extension is particularly useful for developers who need to quickly assess code from repositories without switching between tabs or applications.

The extension supports various file types including HTML, CSS, JavaScript, and JSON, ensuring a comprehensive viewing experience. Users can toggle between raw text and rendered views seamlessly, enhancing the usability of the GitHub interface. With a clean design that integrates well with GitHub's aesthetics and a commitment to privacy, this tool stands out as a valuable addition for anyone working with web development files on GitHub.