What Is a Favicon?
A favicon (short for 'favorites icon') is the small icon displayed in browser tabs, bookmarks, history entries, and mobile home screens. Originally a simple 16×16 pixel ICO file, modern favicons encompass multiple sizes and formats to support high-DPI displays, PWA manifests, and platform-specific icon requirements. A well-designed favicon strengthens brand recognition and improves the user experience by making your site instantly identifiable among dozens of open tabs.
Why Favicons Matter for Your Website
Favicons serve as your website's visual fingerprint. They appear in browser tabs, bookmark bars, search engine results (in some browsers), PWA install screens, and mobile home screen shortcuts. A missing or poorly rendered favicon signals a lack of attention to detail and can reduce user trust. Search engines also use favicons in mobile search results, making them a small but meaningful component of your site's SEO and branding strategy.
Required Favicon Sizes and Formats
Modern websites should provide favicons in several sizes: 16×16 and 32×32 pixels for classic browser tabs, 48×48 for Windows taskbar shortcuts, 180×180 for Apple touch icons, and 192×192 plus 512×512 for PWA manifests. ICO format supports multiple sizes in a single file. PNG provides sharp rendering on high-DPI screens. SVG favicons are resolution-independent and supported by modern browsers, allowing a single file to look perfect at any size.
Best Practices
Start with a simple, recognizable design — favicons are viewed at very small sizes, so avoid fine details. Use a transparent background for PNG and SVG formats. Test your favicon across browsers (Chrome, Firefox, Safari, Edge) and devices (desktop, tablet, mobile). Include all sizes in your HTML head section using appropriate link tags. Our generator creates all required formats automatically, so you only need to upload your source design once.
