How to favicon ico vs png vs svg — which format is best in 2026?
- Step 1Understand format strengths — SVG: modern browsers, scales perfectly, dark mode support, smallest file (often under 1KB). PNG: universal, required for Apple touch icon and PWA manifest. ICO: legacy browsers and OS bookmark apps, multi-resolution container.
- Step 2Implement the recommended strategy — Serve all three: link rel=icon href=/favicon.svg type=image/svg+xml (modern), link rel=icon href=/favicon-32x32.png sizes=32x32 (fallback), link rel=shortcut icon href=/favicon.ico (legacy).
- Step 3Test across contexts — Test your favicon in: browser tab, browser bookmarks menu, desktop bookmark icon, iOS home screen (add to home screen), Android Chrome home screen, PWA installed app icon.
Frequently asked questions
Which browsers support SVG favicons?+
Chrome 80+, Edge 80+, Firefox 41+, Safari 12+. Internet Explorer and Opera Mini do not support SVG favicons. As of 2026, SVG favicon browser coverage exceeds 95% globally.
What is the maximum ICO file size for browser caching?+
ICO files containing multiple resolutions (16, 32, 48) typically range from 15–50KB. Browsers cache them aggressively. Keep ICO files under 100KB to avoid loading delays on first visit.
Does Safari support SVG favicons?+
Safari on macOS 12+ and iOS 15+ supports SVG favicons. However, Safari's implementation does not support prefers-color-scheme media queries inside SVG favicons until macOS 14. Apple touch icons still require PNG.
Can I skip the ICO file entirely?+
For most modern sites, yes. If your analytics show IE or very old Edge usage under 0.5%, you can safely omit favicon.ico. A missing ICO generates a 404 error in server logs — add a 204 No Content response for /favicon.ico if you skip it.
Privacy first
Every JAD SVG tool runs entirely in your browser using the DOM API and Canvas. Your SVG files never leave your device — verified by zero outbound network requests during processing.