Convert any image to ICO format with multiple sizes and transparency support. Free online icon converter supporting PNG, JPG, GIF, BMP, WebP and more.
or click to browse files
No registration, no limits. Convert images instantly with no waiting.
Your files are processed securely and automatically deleted.
Create ICO files with multiple icon sizes in a single file.
Support for PNG, JPG, GIF, BMP, WebP, SVG, and more.
Drag and drop your image or click to browse. We accept PNG, JPG, GIF, BMP, WebP, SVG, and TIFF formats.
Choose the sizes you need (16×16, 32×32, 48×48, etc.) or use quick presets for favicon or desktop icons.
Adjust quality, color depth, transparency, and scaling options to match your needs.
Click "Convert to ICO" and download your multi-size icon file ready for use.
16×16, 32×32, 48×48 – Essential sizes for website favicons displayed in browser tabs, bookmarks, and shortcuts.
16×16 through 256×256 – Complete set for Windows desktop icons, shortcuts, taskbar, and Explorer views.
All available sizes including 512×512 for high-DPI displays, modern apps, and future-proofing.
ICO (Icon) is Microsoft's standard image format for icons in Windows. Unlike regular images, ICO files can contain multiple sizes and color depths of the same icon, allowing Windows to select the most appropriate version for different contexts.
ICO files are essential for website favicons, Windows application icons, desktop shortcuts, and system icons. Our converter creates properly structured ICO files compatible with all versions of Windows and major browsers.
Our converter supports all major image formats including PNG, JPG/JPEG, GIF, BMP, WebP, SVG, and TIFF. PNG is recommended for best results, especially if you need transparency.
Yes! ConvertICO offers all the features you'd expect from icoconvert and more. We support multiple sizes, transparency, batch options, and provide a modern, fast interface. Many users have switched to us as their primary ico converter.
For favicons, use the "Favicon" preset which includes 16×16, 32×32, and 48×48 pixels. These sizes cover browser tabs, bookmarks, and shortcuts across all major browsers. For more comprehensive favicon generation, try our Favicon Generator.
Yes! When "Preserve transparency" is enabled and you select 32-bit color depth, the converter fully maintains alpha transparency from PNG, GIF, WebP, and other formats that support it.
Absolutely! That's one of the key features of the ICO format. Select all the sizes you need, and they'll all be embedded in a single .ico file. Windows and browsers will automatically use the most appropriate size.
We support images up to 10MB. For best results with icons, we recommend starting with images between 256×256 and 1024×1024 pixels. Larger source images produce better quality when scaled down.