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Favicon Badge Generator – Add Notification Dot to Tab Icon

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Badge Settings
Drop image here or click to upload
PNG, JPG, SVG, GIF, WebP
Image loaded
Numbers > 99 display as "99+"
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Data URL copied to clipboard!
Live Preview
favicon Your Website Title
16x16
16Ă—16
32x32
32Ă—32
48x48
48Ă—48
64x64
64Ă—64
Modern browsers support PNG favicons. For best results, use 256Ă—256 and include multiple sizes in your HTML.

Frequently Asked Questions

A Favicon Badge Generator is a free online tool that lets you add a notification dot or numbered badge to your website's favicon (tab icon). This creates the familiar "unread notification" effect seen in apps like WhatsApp Web, Gmail, and Slack—helping your site grab users' attention even when they're on another tab.

Static method: Upload your favicon, customize the badge, download the PNG, and replace your site's favicon file. Dynamic method: Use our generated Data URL with JavaScript to programmatically update the favicon when notifications change. See our code snippet in the tool for a ready-to-use implementation.

Yes! All modern browsers (Chrome, Firefox, Safari, Edge) fully support PNG favicons. PNG is actually preferred over the legacy .ICO format because it supports transparency, higher resolutions, and is widely compatible. Simply link it with <link rel="icon" type="image/png" href="/favicon.png">.

We recommend 256Ă—256 pixels as the master size, which scales down cleanly to all common favicon dimensions (16Ă—16, 32Ă—32, 48Ă—48, 64Ă—64, 128Ă—128). For the badge to remain visible at 16Ă—16, make sure it's large enough in the source image. Our tool automatically handles this with an adjustable badge size slider.

You can dynamically change the favicon using JavaScript by updating the <link rel="icon"> element's href attribute. Generate multiple favicon variants (e.g., with different badge numbers), then swap them based on your notification count. Many apps use a canvas element to draw the badge on-the-fly and set the result as the favicon via document.querySelector('link[rel="icon"]').href = canvas.toDataURL().

All major browsers support custom favicons with badges: Google Chrome (desktop & mobile), Mozilla Firefox, Safari (macOS & iOS), Microsoft Edge, and Opera. The badge is simply part of the favicon image, so it works everywhere favicons are displayed—browser tabs, bookmarks, and home screen shortcuts.

A dot badge is a simple colored circle (usually red) that indicates there's something new without specifying a count—perfect for general "unread" indicators. A number badge displays an exact count (e.g., "3" new messages) inside a colored circle. Number badges are more informative but require more space; numbers above 99 typically display as "99+" to fit within the badge.

No. A favicon with a badge is still just a single small image file (typically under 10KB for a 256Ă—256 PNG). It loads once and is cached by the browser. If you're dynamically updating the favicon via JavaScript, the canvas operations are extremely lightweight and won't impact performance.
Did You Know?
  • Favicons with notification badges can increase user re-engagement by up to 30%—users notice the visual cue and return to your tab.
  • You can use rel="icon" for standard favicons and rel="apple-touch-icon" for iOS home screen icons—both support custom badge images.
  • Google Chrome supports SVG favicons, allowing for crisp rendering at any size. However, PNG remains the most compatible choice.
  • Many popular web apps (WhatsApp, Gmail, Slack, Twitter/X) use dynamic favicon badges to show unread counts—it's a proven UX pattern.
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