Why website icons matter
Website icons help users recognize your brand in browser tabs, bookmarks, pinned shortcuts, and app-like surfaces. A weak icon is easy to ignore, while a clear icon improves recall and polish.
Choose the right file formats
- ICO: Best for classic favicon support and Windows-oriented icon workflows.
- PNG: Useful for Apple touch icons, web manifests, and high-resolution icon assets.
- SVG: Useful in some modern environments, but not a complete replacement for traditional favicon assets.
Recommended icon sizes
- 16x16 px - Standard browser tab favicon
- 32x32 px - High-DPI displays and browser surfaces
- 48x48 px - Windows shortcut or desktop-style use cases
- 180x180 px - Apple touch icon
- 192x192 px and above - Web app and modern device assets
Prepare more than one size so the icon stays sharp across different contexts.
Design tips that hold up at small sizes
- Keep the silhouette simple and easy to recognize.
- Use stronger contrast than you would for a large illustration.
- Avoid thin strokes and fine detail that disappear at 16x16.
- Test the icon at real favicon sizes before exporting final files.
Implementation basics
At minimum, include a traditional favicon and a few PNG assets for broader platform support.
<link rel="icon" type="image/x-icon" href="/favicon.ico">For broader compatibility, pair the ICO file with PNG assets:
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">Accessibility and usability
Use descriptive alt text for meaningful icons that appear inside page content. Decorative icons should be hidden from assistive technologies when they do not add semantic value.
Conclusion
Good website icons come from a disciplined workflow: start with a clear source image, test at small sizes, export the right formats, and wire them into the site head correctly.