Image to ICO converter

We built Image to ICO because creating clean, properly sized icons shouldn’t require clunky tools that distort images or add unnecessary limits.

Every app, website, and desktop shortcut needs an icon. And most of them still use the ICO format.

An ICO file can contain multiple icon sizes inside a single file, which is why Windows has relied on it for decades. If you're building a website favicon, packaging software, or creating a custom folder icon, you'll probably need one.

That's where an Image to ICO converter comes in.

What is an ICO file?

ICO is Microsoft's icon file format. It stores one or more images at different resolutions inside a single file.

A typical ICO file may contain:

• 16×16 pixels

• 32×32 pixels

• 48×48 pixels

• 64×64 pixels

• 128×128 pixels

• 256×256 pixels

Windows automatically picks the size that fits the situation. A small shortcut icon might use 16×16, while a desktop icon could use 256×256.

Why convert images to ICO?

Most logos, graphics, and profile pictures start life as PNG, JPG, WebP, SVG, or another common image format.

Windows doesn't use those formats directly for icons in many cases. It expects an ICO file.

People convert images to ICO when they want to:

• Create a website favicon

• Build desktop applications

• Customize Windows folders

• Change shortcut icons

• Design software branding assets

One clean image can become a usable icon in seconds.

Supported image formats

Most modern converters accept:

• PNG to ICO

• JPG to ICO

• JPEG to ICO

• WebP to ICO

• BMP to ICO

• GIF to ICO

• SVG to ICO

PNG usually produces the best results because it supports transparency.

How to convert an image to ICO

The process is simple.

1. Upload your image.

2. Choose the icon size you want.

3. Generate the ICO file.

4. Download the result.

That's it.

A good converter handles resizing automatically and preserves transparency whenever possible.

Best image size for ICO conversion

For sharp icons, start with a large source image.

A 256×256 PNG is usually a safe choice. The converter can scale it down cleanly for smaller icon sizes.

Tiny source images often look blurry after conversion because there isn't enough detail to work with.

Does ICO support transparency?

Yes.

Modern ICO files support transparent backgrounds, which is why PNG files work so well as source images.

Transparent icons look cleaner on desktops, taskbars, browsers, and application menus.

Image to ICO online

Online converters remove the need to install software.

You upload an image, convert it in your browser, and download the ICO file immediately. No Photoshop. No design software. No extra steps.

For most users, that's the fastest way to create a favicon or application icon.

Final thoughts

ICO may be an old format, but it's still everywhere.

Whether you're creating a favicon, branding an app, or customizing Windows shortcuts, converting an image to ICO takes only a few seconds and gives you a file that's ready to use.