ICO Converter
Create professional favicons from any image.
Select Icon Sizes:
The Easiest Way to Create Favicons
A favicon (short for "favorite icon") is the small icon you see in browser tabs, bookmarks, and history lists. While modern browsers support PNG favicons, the .ico format is still the gold standard for compatibility, especially for legacy browsers and Windows desktop shortcuts.
Why Use .ICO Format?
- Multi-Size Support: A single .ico file can contain multiple versions of the same icon (e.g., 16x16, 32x32, 48x48), allowing the OS to choose the best one for any context.
- Legacy Compatibility: It's the only format supported by older versions of Internet Explorer (IE6-IE10).
- Windows Integration: Essential if users pin your site to their Windows taskbar or desktop.
How to Use This Tool
- Upload Image: Select a high-quality PNG or JPG image (at least 256x256 pixels is recommended).
- Choose Sizes: Select which dimensions you want to include in your icon file. 16x16 and 32x32 are selected by default.
- Convert: Click "Download ICO File" to generate and save your favicon.
Features
- Client-Side Processing: Fast and secure conversion directly in your browser.
- Transparency Support: Preserves alpha channels from PNG source files.
- No Watermarks: 100% free and clean output.
Frequently Asked Questions (FAQ)
What is an ICO file?
An ICO file is an image file format used for computer icons in Microsoft Windows. It's most commonly used as a favicon for websites.
Which sizes should I choose?
For a standard favicon, 16x16 and 32x32 are essential. 48x48 is good for Windows icons. We recommend selecting 'All Sizes' for maximum compatibility.
Does this support transparency?
Yes! If you upload a transparent PNG, the transparency will be preserved in the generated ICO file.
Is there a file size limit?
Since processing happens in your browser, you can convert images of any size your computer can handle, though we recommend keeping source images under 5MB for speed.
Is this tool free?
Yes, the ICO Converter is completely free to use.