iformat.io
Create professional ICO icons and website favicons instantly with our comprehensive ICO converter toolkit - the ultimate solution for web developers, designers, and anyone needing high-quality icon files. Convert PNG, JPG, GIF, and other image formats to ICO format, or convert existing ICO files.
Support for multiple file formats
Transform your ICO files to any format in three simple steps with professional-grade quality
Select your ICO files using our secure upload interface. Support for batch processing means you can convert multiple files simultaneously to any format.
Select your desired format from our supported options. Our advanced conversion engine processes files with enterprise-grade algorithms for optimal quality.
Download your converted files individually or as a convenient ZIP archive. All files are processed securely and ready for immediate use.
Transform your ICO images to different formats for better compatibility, optimized file sizes, and universal support across all devices and platforms
Convert ICO to formats that work on all devices, browsers, and applications. Perfect for sharing images without compatibility issues.
Convert ICO to compressed formats for smaller file sizes, perfect for web use, faster uploads, and saving storage space.
Different formats offer unique advantages for photo editing. Convert ICO to formats optimized for your specific editing needs.
Convert ICO images to web-optimized formats that load faster on websites and are accepted by all social media platforms for instant sharing.
Upload and convert hundreds of ICO images simultaneously. Save time with bulk conversion to any supported format.
Transform your ICO images to any format instantly. Support for batch conversion - upload multiple files at once for maximum efficiency.
Start Converting ICO ImagesDiscover our complete suite of professional file conversion tools for all your workflow needs
An ICO file is a Windows icon format that stores images in multiple sizes (16x16 to 256x256 pixels) within a single file. You need ICO format primarily for website favicons, Windows application icons, and desktop shortcuts. Unlike PNG or JPG, ICO files can contain multiple image sizes, making them perfect for displaying crisp icons across different screen resolutions and contexts.
The most common ICO sizes are 16x16 pixels for favicons, 32x32 pixels for desktop icons, and 48x48 pixels for larger application icons. Create a 32x32 ICO file for modern websites, which works well across browsers and devices. For Windows applications, use 48x48 or multiple sizes (16x16, 32x32, 48x48) in one ICO file for optimal display quality.
Yes, converting PNG to ICO typically maintains excellent quality since both formats support transparency and high-resolution images. PNG is the best source format for ICO conversion because it preserves sharp edges and transparency. However, avoid converting from compressed formats like JPG, which may introduce artifacts. Always start with high-quality PNG files for the best ICO results.
To convert a JPG to an ICO for favicons, upload your JPG image to iformat's ICO converter, select 16x16 or 32x32 pixel output size, and download the ICO file. Save it as "favicon.ico" in your website's root directory. JPG doesn't support transparency, so consider using PNG instead if you need a transparent background for your favicon.
The ICO format can store multiple image sizes in one file and has better browser compatibility, especially with older browsers. PNG favicons work in modern browsers but require separate files for different sizes. ICO files are slightly larger but more reliable for cross-browser favicon display. For maximum compatibility, use the ICO format; for modern websites only, PNG is acceptable and easier to create.
Common issues include incorrect file size (Windows prefers 48x48 or 32x32 pixels), missing transparency, or file corruption during conversion. Ensure your source image has a transparent background, use square dimensions, and save as a proper ICO file. Also, check that you're placing the ICO file in the correct location and that Windows can access it.
No, the ICO format doesn't support animation, so converting an animated GIF to ICO will only capture the first frame. If you need animated icons, consider using APNG or WebP formats for web applications or creating multiple static ICO files for different states. Static ICO files are the standard and expected format for traditional Windows applications and favicons.
Use an advanced ICO converter that supports multiple sizes. Upload your high-resolution source image (preferably 256x256 PNG) and select multiple output sizes like 16x16, 32x32, and 48x48. The converter will automatically resize and combine them into one ICO file. This creates professional-quality icons that display perfectly at any size, from taskbar to desktop to browser tabs.
