Convert WebP images into professional macOS ICNS icon files. WebP's transparency is fully preserved, making it perfect for app icons, Finder icons, and custom folder icons on Mac. Have a PNG instead? Try our PNG to ICNS converter. Need Windows icons? Use our PNG to ICO converter or explore the ICNS Viewer to inspect existing icons.
WebP supports alpha channels like PNG, making it ideal for icons with transparent backgrounds. Our converter preserves this transparency in your ICNS file.
WebP is Google's next-gen image format offering superior compression. If you have WebP assets, convert them directly to ICNS without intermediate formats.
WebP maintains excellent image quality even at smaller file sizes. This makes it a great source format for creating sharp, detailed icons.
Many web designers work primarily with WebP. This converter lets you repurpose web assets for macOS app development seamlessly.
ICNS is the native icon format for macOS. It contains multiple sizes in a single file, allowing macOS to choose the best size for each context.
ICNS files bundle icons from 16x16 up to 1024x1024, supporting both standard and Retina displays automatically.
Required for macOS app submissions to the App Store. Xcode uses ICNS files for app icons.
Use ICNS files to customize folder icons in Finder. Simply copy the icon and paste it onto any folder.
Use a 1024x1024 or larger WebP for best results. The converter will create crisp icons at all smaller sizes.
WebP supports transparency like PNG. Use transparent backgrounds for professional-looking icons that blend seamlessly with macOS.
For best results, start with a square image. Enable "Smart Crop" to automatically center and crop non-square images.
Enable "Big Sur Rounded Corners" for the modern macOS look with smooth, rounded icon edges.
Smallest size, used in Finder list view and window title bars.
Finder column view, preference panes, and small dock icons.
Standard Finder icon view. Most commonly seen size.
Cover Flow view and larger Finder displays.
Full-size Quick Look previews and maximum non-Retina quality.
Retina displays (@2x). Required for crisp icons on modern Macs.
WebP is a modern image format developed by Google that provides superior lossless and lossy compression for images on the web. It supports transparency (alpha channel) like PNG while offering smaller file sizes. Many websites and design tools now use WebP as their primary format.
Yes! WebP supports alpha transparency just like PNG, and our converter fully preserves it in the resulting ICNS file. Your transparent backgrounds will look perfect in macOS Finder, Dock, and applications.
ICNS is Apple's icon format for macOS, while ICO is Microsoft's format for Windows. ICNS supports larger sizes (up to 1024px) and is required for Mac apps. Use PNG to ICO if you need Windows icons.
For app development, include all sizes (16, 32, 128, 256, 512, 1024). For personal use, the "Standard Mac" preset (16, 32, 128, 256, 512) is sufficient. Add 1024x1024 for Retina display support.
Open the ICNS file in Preview, press Cmd+A to select all, then Cmd+C to copy. Right-click any folder or app, choose "Get Info", click the icon at the top left, and press Cmd+V to paste your custom icon.
Both work excellently! WebP and PNG both support transparency and produce high-quality ICNS files. Use whichever format your source image is in - there's no need to convert between them first. If you have a choice, PNG is slightly more universal, but WebP works just as well for icon creation.