App Icon Generator

Generate every icon size for iOS, Android, and Web in one click. 100% private and secure.

💎

Drop your 1024x1024 Logo or select file

PNG, WEBP, or JPG (Private processing)

What is the App Icon Generator?

The App Icon Generator is a client-side asset compilation utility designed to generate a complete set of application icons in multiple resolutions. By dropping in a high-resolution logo, developers and designers can compile favicons, PWA icons, iOS App Store graphics, and Android launcher assets instantly.

This generator processes all image sampling, canvas rendering, and ZIP packaging operations locally in your browser memory. Your high-resolution master graphics and compiled files remain entirely private, avoiding any external server uploads.

How to Use the App Icon Generator

  1. Upload Your Master Logo: Drag and drop your high-resolution logo (ideally 1024x1024 pixels) into the upload zone, or click to select a file.
  2. Review Asset Grid: The workspace automatically updates to display a grid of generated icons at different sizes (from 16x16 up to 1024x1024).
  3. Download ZIP: Click the "Download All as ZIP" button to save the entire folder of compiled icons directly to your computer.
  4. Start Over: Click "Start Over" to clear the workspace and upload a new image.

Key Features

  • Multi-Platform Dimensions: Automatically generates favicons (16x, 32x), PWA assets (192x, 512x), iOS icons (180x, 1024x), and Android sizes.
  • Interactive Preview Deck: Displays a live grid of all generated dimensions to check clarity before downloading.
  • Automatic ZIP Bundling: Packages all resized assets in a single structured ZIP archive using JSZip.
  • Transparency Preservation: Retains PNG transparency layers across all scaled output resolutions.
  • 100% Client-Side Processing: Performs all image manipulation locally in browser RAM to safeguard your brand designs.

Common Use Cases

  • App Store Submissions: Generate the complete set of required sizes for iOS and Android store listings with one click.
  • PWA Setup: Create manifest-ready launch icons to support web application installations.
  • Favicon Compilation: Generate web-ready favicons for modern browsers and tab displays.
  • Social Media Profiling: Resize logos for standard avatar formats across different business profiles.

Frequently Asked Questions

We recommend uploading a high-resolution PNG file (minimum 1024x1024 pixels). PNGs preserve transparency layers, which is crucial for round or custom-shaped app icons.

No. The generator scales your image proportionally to fit standard square dimensions, keeping your design's aspect ratio intact.

No. Your images are loaded and processed locally using your browser's canvas APIs. 99tool.in does not store, collect, or share your proprietary visual assets.

Yes. Once loaded, the tool runs entirely client-side using JavaScript, allowing you to generate and download icon sets offline.

🔒 Privacy & Data Note: Image uploads, scaling canvas tasks, and ZIP compilation are processed locally in your browser. No files are stored or uploaded.