What is the best image size to start with?

Start with a square image that is at least 64x64 pixels. Larger images (256x256 or 512x512) give the converter more detail to work with when scaling down to smaller sizes.

Can I include multiple sizes in a single ICO file?

Yes. The ICO format is designed to hold multiple image sizes in one file. We recommend including at least 16x16 and 32x32 for broad browser and OS compatibility.

Do I need an ICO file or can I just use a PNG favicon?

Modern browsers support PNG favicons, but some older browsers and certain Windows features specifically require the ICO format. Using an ICO file ensures maximum compatibility.

Will my image be cropped or stretched?

The converter scales your image proportionally. For best results, use a square image so there is no cropping or distortion at the target sizes.

How do I add the ICO file to my website?

Place the favicon.ico file in the root directory of your website and add a link tag in your HTML head: .

Image to ICO Converter

Convert any image to ICO favicon format for websites and applications.

🌐

Upload Image to Convert to ICO

JPG, PNG, WEBP, BMP

Creating favicons for your website requires converting images to the ICO format, which is the standard icon file format supported by all web browsers. Our free Image to ICO converter transforms any image — JPEG, PNG, WebP, GIF, BMP, or SVG — into a properly formatted ICO file that works as a browser tab icon, bookmark icon, and shortcut icon. Unlike simple image resizing, the ICO format can contain multiple icon sizes within a single file, ensuring your favicon looks crisp and clear at every display size. Our converter lets you select which sizes to include: 16x16 for browser tabs, 32x32 for taskbar icons, 48x48 for Windows desktop, 64x64 for high-DPI displays, 128x128 for Google Chrome web store, and 256x256 for Windows Vista and later high-resolution contexts. The tool constructs a valid ICO binary file with proper ICONDIR headers and image directory entries, embedding PNG-compressed image data for optimal file size. All processing runs in your browser using the Canvas API — your images never leave your device. Whether you are launching a new website, updating your brand identity, or creating icons for a desktop application, this tool delivers production-ready ICO files in seconds.

How to Convert Image to ICO

Upload Your Image

Click the upload area or drag and drop any image file. JPG, PNG, WebP, GIF, BMP, and SVG formats are all supported.

Select Icon Sizes

Choose which sizes to include in your ICO file: 16x16, 32x32, 48x48, 64x64, 128x128, and 256x256. Select multiple for a multi-size favicon.

Convert to ICO

Click the convert button and the tool generates a proper ICO file with ICONDIR headers and PNG-compressed image data.

Download Your Favicon

Download the .ico file and add it to your website root directory. Reference it with a link tag in your HTML head.

Why Convert Images to ICO?

Create professional favicons for your website that display in browser tabs

Generate multi-size ICO files with all standard icon dimensions

Ensure compatibility across all browsers and operating systems

Build desktop application icons and Windows shortcuts

Proper ICO format with ICONDIR headers for full compatibility

Complete privacy — all conversion happens in your browser

Use Cases

Creating website favicons from logo or brand imagesGenerating browser tab icons for web applicationsBuilding bookmark and shortcut iconsCreating Windows desktop application iconsProducing taskbar icons for desktop softwareMaking multi-size icon packs for various display contexts

Best Practices for Image to ICO

Start with a square image for best results — non-square images will be stretched
Include at least 16x16, 32x32, and 48x48 sizes for broad compatibility
Use a simple, recognizable design that reads well at small sizes
Use PNG source images with transparency for icons with transparent backgrounds
Test your favicon across different browsers and devices after deployment