How to Create a Favicon — Complete Guide for 2026

A favicon is the small icon that appears in browser tabs, bookmarks, and search results next to your website's name. Despite being tiny — typically 16×16 or 32×32 pixels — it's a crucial branding element. A missing or broken favicon makes your site look unprofessional. Here's how to create one properly in 2026.

Favicon Size and Format Requirements

Why ICO Format Matters

ICO is a special format that can contain multiple image sizes within a single file. A single .ico file can include 16×16, 32×32, and 48×48 versions simultaneously. Browsers pick the appropriate size based on context. While modern browsers support PNG favicons, ICO remains the most universally compatible format — especially for older browsers and bookmarks.

How to Create a Favicon: 3 Methods

Method 1: Convert Any Image to ICO (Easiest)

1. Start with a square image (your logo or icon) at 256×256px or larger
2. Open our Image Converter
3. Upload your image and select ICO as the output format
4. Download the .ico file
5. Place it in your website's root directory as favicon.ico

Method 2: SVG Favicon (Best for Modern Browsers)

Modern browsers support SVG favicons with dark mode support:

Method 3: Multi-Size PNG Set

For maximum compatibility, provide multiple sizes:

Favicon Best Practices

• Keep it simple. At 16×16 pixels, complex logos become unrecognizable. Use a simplified version of your logo or a single distinctive element.
• Use dark/light contrast. Favicons appear on both light and dark browser themes. Use a design with strong contrast or provide dark/light variants using the SVG approach.
• Test across browsers. Chrome, Firefox, Safari, and Edge all render favicons slightly differently. Check all four.
• Don't forget the manifest. For PWA (Progressive Web App) support, add a manifest.json with larger icon sizes.