Favicon Previewer – Test Icons at Multiple Sizes
Favicons are small but important visual elements that represent your website in browser tabs, bookmarks, and shortcuts. A well-designed favicon helps with brand recognition and professionalism. However, creating a favicon that looks good at tiny sizes (16×16 pixels) can be challenging. The Favicon Previewer by ToolfolioHub lets you upload an image and instantly see how it appears at common favicon sizes: 16×16, 32×32, 48×48, and 64×64 pixels.
Whether you're designing a new favicon, testing an existing one, or optimizing an icon for web use, this tool provides instant visual feedback at actual display sizes.
What is a Favicon?
A favicon (favorite icon) is a small icon associated with a website:
- Browser Tabs: Appears next to the page title
- Bookmarks: Shows in bookmark lists
- Browser History: Displays in history and recently visited
- Desktop Shortcuts: Used when saving websites to desktop
Favicons are typically 16×16 or 32×32 pixels, though modern standards support multiple sizes up to 512×512 for different contexts.
Key Features & Benefits
1. Multiple Size Previews
Preview your icon at four common sizes:
- 16×16: Standard browser tab size
- 32×32: High-DPI displays and bookmarks
- 48×48: Desktop shortcuts
- 64×64: Larger contexts
2. Instant Canvas Rendering
Images are rendered on HTML5 canvas elements, showing exactly how they'll appear at each size. This helps identify:
- Detail loss at small sizes
- Readability issues
- Proportion problems
3. Any Image Format Supported
Upload PNG, JPG, SVG, or any image format. The tool automatically resizes and displays at each favicon size.
How to Use the Favicon Previewer
- Upload Image: Click "Choose File" and select your favicon image.
- Review Previews: See how your icon looks at 16×16, 32×32, 48×48, and 64×64 pixels.
- Evaluate: Check if details are clear and readable at small sizes.
- Adjust if Needed: If the icon isn't clear, simplify your design and try again.
Favicon Design Tips
- Keep It Simple: Complex designs lose detail at 16×16 pixels
- High Contrast: Ensure good contrast for visibility on light and dark backgrounds
- Square Format: Favicons are square—design with this constraint in mind
- Test at Size: Always preview at actual display sizes (16×16, 32×32)
- Multiple Sizes: Provide different sizes for different contexts
Conclusion
The Favicon Previewer helps ensure your favicon looks professional at all display sizes. By previewing icons at actual favicon dimensions, you can create effective, recognizable brand icons that enhance your website's appearance.