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PNG to ICO Converter

Convert your PNG images to ICO favicon format online for free. Create website favicons for your web projects.

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PNG to ICO: Create Website Favicons

What is ICO Format?

ICO is a file format designed specifically for favicons - the small icons that represent websites in browser tabs, bookmarks, and history lists. ICO files can contain multiple images at different resolutions, allowing browsers to select the most appropriate size for display.

Key Benefits of ICO

  • Browser Compatibility: ICO is the standard format for website favicons with broad browser support
  • Multiple Resolutions: A single ICO file can store multiple image sizes (16×16, 32×32, 48×48, etc.)
  • Transparency Support: ICO supports transparency, allowing your favicon to look good on any background
  • Wide Recognition: Automatically recognized by browsers as the favicon when named properly

Perfect Use Cases

ICO is ideal for:

  • Website favicons displayed in browser tabs and bookmarks
  • Desktop application icons in Windows environments
  • System tray icons for desktop applications
  • Shortcut icons for web applications

Browser Compatibility

ICO format is supported by all major browsers including Chrome, Firefox, Safari, Edge, and Opera, making it the standard choice for website favicons.

How Our Converter Works

Our tool converts your PNG images to ICO format in your browser using advanced algorithms that preserve quality and transparency. For best results, we recommend starting with a square PNG image at one of these dimensions: 16×16, 32×32, 48×48, or 64×64 pixels.

When to Choose ICO over PNG

Choose ICO when you need:

  • A favicon for your website
  • Icons for Windows desktop applications
  • Compatibility with older browsers that don't support PNG favicons
  • Multiple icon resolutions in a single file

Implementation Tips

After converting your PNG to ICO:

  1. Name the file favicon.ico
  2. Place it in the root directory of your website
  3. Add this line to your HTML <head> section: 
    <link rel="icon" href="/favicon.ico" type="image/x-icon">

This ensures maximum compatibility across all browsers and devices.

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