Increase root font is a free Chrome add-on developed by eldomata. This add-on falls under the Browsers category and specifically the Add-ons & Tools subcategory. Its main purpose is to increase the font size of the HTML content on webpages.

With Increase root font, users can easily adjust the font size in percentage to suit their preferences. This add-on is particularly useful for individuals who have difficulty reading small text or who prefer larger fonts for better visibility. However, it is important to note that the add-on will only work if the website has been styled with 'em', 'rem', or '%' units.

Overall, Increase root font is a handy tool for Chrome users who want to enhance their browsing experience by customizing the font size on webpages. It is easy to use and offers a simple solution for those who require larger fonts.