Use System Font Everywhere is a Chrome extension that allows users to apply system fonts to the internet. Developed by S.J. Zhang, this free extension is a great tool for enhancing legibility and readability while browsing the web.

With Use System Font Everywhere, users can utilize San Francisco on macOS and Segoe UI on Windows 10, which are known for their excellent legibility. This extension is especially useful when reading long articles or visiting websites with unfavorable font choices.

By applying system fonts, users can have a consistent and familiar reading experience across different websites. This extension seamlessly integrates with Chrome, making it easy to enable and disable as needed.

Overall, Use System Font Everywhere is a handy Chrome extension for those who value legibility and want to enhance their browsing experience. Whether you're reading articles or visiting websites with poor font choices, this extension ensures that you can easily read and understand the content.