Convert PNG images to ICO format for favicons and Windows icons. Generates multiple sizes (16, 32, 48, 64, 128, 256) in a single ICO file. All processing happens in your browser - your images never leave your device.
Click to upload or drag and drop
Multiple images supported (max 20MB)
ICO (Icon) format is the standard format for website favicons and Windows application icons. Our converter automatically generates multiple icon sizes (16x16, 32x32, 48x48, 64x64, 128x128, and 256x256 pixels) in a single ICO file, ensuring your icon displays correctly across all browsers, devices, and Windows applications. This is essential for professional website branding and Windows application development.
Our converter generates 6 standard sizes: 16x16, 32x32, 48x48, 64x64, 128x128, and 256x256 pixels, all in a single ICO file.
We recommend using a PNG image that is at least 256x256 pixels for best quality. The converter will automatically resize it to create all necessary icon sizes.
Yes, simply upload the ICO file to your website root directory and name it "favicon.ico". Most browsers will automatically detect and use it.
Yes, ICO format supports transparency, so transparent PNG images will maintain their transparency in the ICO file.
Yes, ICO format is the standard format for Windows application icons. You can use the generated ICO file directly in your Windows application development.