FontUsed is a free Chrome extension designed for developers, designers, and typography enthusiasts to analyze fonts on webpages. It offers real-time analysis, allowing users to refresh the data as needed, making it ideal for dynamic sites. The interactive highlighting feature lets users hover over fonts to highlight corresponding elements, simplifying the inspection process. Additionally, a dedicated tab displays all font sizes used, helping to identify inconsistencies in typography easily.

The extension features an elegant monochrome interface that presents information clearly, categorizing fonts into web fonts and system fonts. Users can access detailed statistics, which include the number of elements using each font and their specific sizes and weights. With its comprehensive analysis and user-friendly design, FontUsed is a valuable tool for anyone looking to dive deeper into web typography.