Convert images to ICO format for favicons and Windows applications with customizable sizes.
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Quickly convert images to ICO format for use in software, websites, and desktop icons. Supports multiple sizes and formats with high-quality output.
An ICO file is a format used to store icons for Windows applications. These files can include one or more small images at multiple sizes (e.g., 16×16, 32×32, 64×64) and color depths. They're commonly used for software shortcuts, website favicons, and desktop application icons.
Converting an image to ICO format ensures compatibility with operating systems, especially Windows. It's essential for developers, designers, and anyone building desktop apps or websites. Advantages of using our online ICO converter include:
All processing is done in your browser — no file is uploaded to a server, ensuring complete privacy and speed.
The converter will automatically resize and format your image for optimal ICO usage.
Whether you're building a Windows application, creating a favicon for a website, or customizing your desktop, our ICO converter provides everything you need. It’s particularly useful for:
Can I create multi-resolution ICO files? Yes, you can include multiple icon sizes in a single ICO file.
Does this tool preserve transparency? Yes, PNGs with transparency are preserved in the ICO output.
Is this ICO converter free? Absolutely. Our tool is 100% free and requires no registration.
Do I need to install software? No. This is a fully web-based tool – fast, private, and reliable.