How It Works

1

Upload Your Image

Drop or select any image file. For best results, use a square image for your icon. All processing stays in your browser.

2

Convert to ICO

Click Convert and the tool creates an ICO file from your image, properly sized for icon usage.

3

Download ICO File

Download your ICO file instantly. Perfect for favicons, desktop shortcuts, and application icons.

Why Choose UnlimitedConvert?

Favicon Ready

Create favicons for your website instantly. ICO is the standard format for browser tab icons.

Windows Icons

ICO is the native icon format for Windows applications, desktop shortcuts, and file associations.

100% Private

All conversion happens in your browser. Your images never leave your device.

Multiple Sizes

ICO files can contain multiple icon sizes in a single file for optimal display at different resolutions.

Frequently Asked Questions

What is ICO format? +

ICO is the icon file format used by Microsoft Windows for desktop icons, application icons, and favicons (website tab icons). It can contain multiple sizes of the same icon in one file.

What size should my favicon be? +

For web favicons, 16x16 and 32x32 pixels are standard. For Windows desktop icons, 48x48 and 256x256 are common. A square source image works best.

Can I use ICO for my website favicon? +

Yes! ICO is the traditional format for favicons. Simply name your file favicon.ico and place it in your website root directory. All browsers support ICO favicons.

What formats can I convert to ICO? +

You can convert JPG, PNG, WEBP, GIF, BMP, TIFF, HEIF/HEIC, SVG, AVIF, PSD and more to ICO format.

Should I use a square image for icons? +

Yes, square images work best for ICO files. If your image is not square, it will be resized which may distort the aspect ratio.

Pro Tips

Use Square Images

For best results, use a square source image. Icons look best when they are not stretched or distorted.

Start with High Resolution

Use a high-resolution source image (at least 256x256) so the icon looks sharp at all display sizes.

Favicon Setup

Add your favicon to your website with: <link rel="icon" href="/favicon.ico" type="image/x-icon">

Supports Transparency

ICO supports transparency, so you can create icons with transparent backgrounds for a professional look.