Key Features
- Convert PNG, JPG, GIF, or BMP to ICO format
- Create multi-size ICO files (16px to 256px)
- Perfect for website favicons and Windows icons
- Select custom icon sizes to include
- Preserves image quality and transparency
- Fast server-side conversion with secure file deletion
Common Use Cases
- Create favicon.ico for your website
- Generate Windows application icons
- Create browser bookmark icons
- Make icons for desktop shortcuts
- Convert logos to multi-size ICO format
- Create icons for software projects
How to Use
- Click "Select Image File" and choose your image (PNG, JPG, GIF, or BMP)
- Select which icon sizes you want (16, 32, 48 are standard for favicons)
- For best results, use a square image (e.g., 512×512px)
- Click "Convert to ICO" to start the conversion
- Download your favicon.ico file
- Upload to your website root and add to your HTML: <link rel="icon" href="/favicon.ico">
Frequently Asked Questions
ICO is the image file format for icons in Microsoft Windows. ICO files can contain multiple images at different sizes and color depths, allowing them to be scaled appropriately for different display contexts. They're most commonly used as favicons (the small icon in browser tabs) and Windows application icons.
For website favicons, the recommended sizes are 16×16px (browser tab), 32×32px (taskbar), and 48×48px (desktop shortcut). Modern browsers also support 64×64px and higher. Including multiple sizes ensures your favicon looks crisp on all devices and contexts.
Use a square image at least 256×256px or larger for best results. Higher resolution source images (512×512px or 1024×1024px) will produce sharper icons when scaled down. Make sure your image is square (equal width and height) for proper display.
Yes! If your source image (PNG or GIF) has transparency, it will be preserved in the ICO file. This is important for favicons and icons that need to display on different backgrounds. JPG images don't support transparency, so they'll have a white or colored background.
Yes, you can convert any image to ICO format, but ICO is designed for icons, not photos. Photos will be scaled down to small icon sizes (16-256px) and may lose detail. For best results, use simple graphics, logos, or icons with clear shapes and limited colors.
Upload the favicon.ico file to your website's root directory. Then add this line to your HTML <head> section: <link rel="icon" type="image/x-icon" href="/favicon.ico">. Most browsers will automatically look for favicon.ico in the root directory without needing the HTML tag.
ICO files can bundle multiple icon sizes into a single file. When displayed, the operating system or browser will automatically select the most appropriate size. This ensures your icon looks sharp whether it's shown as a tiny 16×16px browser tab icon or a larger 256×256px desktop icon.
Absolutely! All images are processed securely on our server and are automatically deleted immediately after you download the ICO file. We do not store, view, or share your images with anyone. All processing is done privately and securely.
