Icon Size Generator

The Icon Size Generator is a comprehensive, free reference tool for app developers and designers. It displays all required icon sizes for iOS, Android, and web platforms, eliminating guesswork from the app icon creation process. Whether you're launching an iPhone app, Android app, or Progressive Web App (PWA), this guide ensures you create every icon size needed for submission and optimal display across all devices.

Why App Icon Sizes Matter

App stores and operating systems require specific icon sizes for different contexts—home screens, notifications, settings, search results, and store listings. Missing even one required size can cause app rejection, display issues, or pixelated icons. iOS and Android each have unique requirements based on screen density and device type. This tool provides a complete, up-to-date reference for all platforms, ensuring your app icons look sharp everywhere.

iOS Icon Size Requirements

Apple requires icons in multiple resolutions to support different iPhone and iPad models. The most critical size is 1024×1024 pixels for the App Store listing—this is mandatory and must be in PNG format without transparency. For app display, iOS uses @1x, @2x, and @3x scales: 180×180 for iPhone (@3x), 167×167 for iPad Pro (@2x), 152×152 for iPad (@2x), and smaller sizes for notifications and settings. Apple's Human Interface Guidelines specify exact dimensions for each context, and our generator lists every required size.

Android Icon Size Requirements

Android uses density-independent pixels (dp) with multiple density buckets: ldpi, mdpi, hdpi, xhdpi, xxhdpi, and xxxhdpi. The Google Play Store requires a 512×512 pixel high-resolution icon. For launcher icons, Android needs 192×192 (xxxhdpi), 144×144 (xxhdpi), 96×96 (xhdpi), 72×72 (hdpi), 48×48 (mdpi), and 36×36 (ldpi). Modern Android also supports adaptive icons with separate foreground and background layers, each at these same sizes.

Web and PWA Icon Sizes

Progressive Web Apps and websites require multiple icon sizes for different browsers and contexts. The standard PWA manifest requires 192×192 and 512×512 PNG icons. Apple devices need an apple-touch-icon at 180×180. Favicons should include 16×16 and 32×32 sizes, typically combined into a single .ico file. Some browsers also use 96×96 and 128×128 for bookmarks and shortcuts. Supporting all sizes ensures your web app looks professional on every platform.

Icon Design Best Practices

Start Large: Design at 1024×1024 or larger in vector format (SVG, AI, Sketch) for scalability. Simplicity Wins: Icons should be recognizable at small sizes—avoid fine details and thin lines. Test at Small Sizes: View your icon at 29×29 or 16×16 to ensure it's still clear. Use Proper Margins: iOS requires no padding (icon fills the space), while Android recommends safe zones. No Transparency on iOS: Apple rejects icons with alpha channels. Consistent Branding: Use the same design across all platforms for brand recognition.

Perfect For:

• Mobile App Developers: Ensure all required icon sizes are created before app submission
• UI/UX Designers: Reference correct dimensions when designing app icons
• Graphic Designers: Create complete icon sets for client app projects
• Product Managers: Verify design deliverables include all necessary icon sizes
• Web Developers: Implement proper favicon and PWA icons for web applications
• Marketing Teams: Ensure consistent branding across app store listings
• Indie Developers: Quick reference when building and launching apps solo

Common Icon Size Mistakes

Wrong Aspect Ratio: All app icons must be perfectly square—rectangular icons will be rejected. Including Transparency: iOS strictly prohibits transparent backgrounds. Using JPG Format: App stores require PNG format for lossless quality. Pixelated Upscaling: Never upscale small icons—always design large and scale down. Missing Required Sizes: Incomplete icon sets cause app rejection or poor user experience. Ignoring Platform Guidelines: iOS and Android have different visual styles and requirements.

Export Workflow Tips

Design tools like Figma, Sketch, Adobe XD, and Illustrator can export multiple icon sizes simultaneously. Create artboards or frames at each required size, or use export presets. Many tools offer app icon export plugins that automatically generate all sizes. Always export as PNG with no compression. Verify each exported icon visually—automated scaling sometimes produces unexpected results, especially with very small sizes.

Why Use This Tool

Complete Reference: All iOS, Android, and web icon sizes in one place. Always Current: Updated with latest platform requirements. Platform Filtering: View only the sizes you need. Context Labels: Understand where each icon size is used. 100% Free: No account or payment required. Quick Access: Bookmark for instant reference during design. Developer-Friendly: Perfect companion during app development and submission.

Use this Icon Size Generator as your go-to reference when creating app icons. Ensure pixel-perfect icons across every platform and pass app store review on the first try.