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App Icon Generator

Generate app icons for iOS, Android, Web/PWA, and macOS from a single image. Creates all required sizes with proper folder structure and manifest files.

Built & Maintained by the devtoolspack Team

Select Platforms

Drag and drop an image here, or

Supported formats: PNG, JPG, WebP, SVG (Recommended: 1024×1024 PNG)

Streamlined Asset Engineering with Our App Icon Generator

In cross-platform mobile and web development, managing dozens of icon resolutions is a significant bottleneck. Our App Icon Generator is a professional automation utility designed to transform a single high-resolution image into a complete, deployment-ready asset package. Supporting Apple Xcode (iOS/macOS), Android Studio, and Progressive Web Apps (PWA), we ensure your branding remains crisp across every pixel density.

This tool is an essential daily utility for mobile engineers, UX designers, and web developers who need to satisfy rigid platform specificities with zero manual resizing.

Automated Platform Specification Compliance

Our generator automatically handles the complex folder structures and metadata requirements for modern IDEs:

  • Xcode Assets (iOS/macOS): Generates the Contents.json manifest and all 20+ required @1x, @2x, and @3x variations.
  • Android mipmap: Produces the full density spectrum (ldpi through xxxhdpi) with appropriate naming conventions.
  • Web/PWA Manifest: Creates standardized 192x192 and 512x512 icons along with a starter manifest.json configuration.
  • Text-to-Icon Mode: Quickly prototype brand icons using emojis or typography with custom background HEX colors.

Privacy-First Client-Side Architecture

Your intellectual property and branding assets should never be uploaded to third-party servers. Our App Icon Generator is 100% serverless. All image resampling, canvas manipulation, and ZIP compression occur strictly within your browser's local sandbox. No source files or generated assets are ever transmitted to a backend. This guarantees complete confidentiality and high-speed processing without network dependency.

Frequently Asked Questions

What platforms are supported?

This tool generates icons for iOS (iPhone/iPad/App Store), Android (all device densities), Web/PWA (favicons and home screen icons), and macOS applications. You can select which platforms to generate.

What image should I upload?

Upload a square PNG, JPG, or WebP image at least 1024×1024 pixels for best quality. The image should have a transparent or solid background. Avoid text or fine details that won't scale well to very small sizes like 16×16.

What is Contents.json?

Contents.json is an Xcode asset catalog manifest required for iOS and macOS app icons. It maps each icon file to its size, scale, and device type. The generated file is ready to import into Xcode without modification.

How do I use the generated icons in my project?

Extract the ZIP file and copy each platform folder to your project: iOS/macOS folders go into Xcode's Assets.xcassets, Android folders go into app/src/main/res/, and Web icons go to your public folder. See the included README.md for detailed integration steps.

Can I generate icons from text or emoji?

Yes! Switch to Text/Emoji mode to create simple app icons with a single character, emoji, or 2-letter abbreviation. Choose background and text colors to match your brand.

What sizes are generated for iOS?

iOS gets 20 icons ranging from 20×20 to 1024×1024 with @1x, @2x, and @3x variants for different devices (iPhone, iPad, iPad Pro) and different uses (notifications, settings, app icon, app store).

Is my uploaded image secure?

Absolutely! All icon generation happens entirely in your browser using JavaScript. Your images never leave your device or get uploaded to any server. Processing is 100% local and private.