App Icon Generator - iOS, Android & Favicon Sizes

How the App Icon Generator Works

1. 01Upload one square image, ideally 1024x1024 or larger; non-square uploads can be center-cropped in one click.
2. 02The tool renders all 13 iOS sizes, 7 Android sizes, and 2 favicon sizes on canvas in your browser.
3. 03Pick the Android export shape (square, rounded, or circle) and preview iOS icons with rounded corners.
4. 04Download icons individually, per platform set, or all at once with clear names like ios-icon-180x180.png.

Preparing Artwork That Survives Every Icon Size

Great app icons are designed for the smallest size first. Your artwork will be displayed anywhere from 1024 pixels in the App Store down to 20 pixels in iOS Settings, and details that look elegant at full size turn into noise at the bottom of that range. Start with a simple, high-contrast shape and avoid thin lines, small text, and photographic detail. Use a 1024 by 1024 source: Apple requires exactly that size for the store listing, and downscaling from it covers every other slot cleanly. Fill the whole canvas; iOS masks its own rounded corners, and transparent corners in your source will show as black in the App Store. For Android, think about how the icon looks inside a circle, since many launchers mask icons circular regardless of what you ship. After generating, zoom your browser out and squint at the 48, 29, and 20 pixel versions: if you can still recognize the concept, the icon works. If not, simplify and regenerate; it costs seconds here versus a rejected build later.

When to Use the App Icon Generator

Use it whenever an app project needs its icon set: before the first TestFlight build, before every App Store or Play Store submission with updated artwork, when a rebrand lands and all sizes must be regenerated, or when a client hands you a single large logo and the build pipeline expects a folder of exact sizes. It is equally useful for PWAs and websites that need favicons and touch icons from the same artwork.

Common Use Cases

• ·Generating a complete icon set before an App Store or Play Store submission
• ·Regenerating every size after a logo refresh or rebrand
• ·Producing favicons and touch icons for a PWA from the same artwork
• ·Creating a full favicon package with ICO support → Favicon Generator
• ·Resizing artwork to one-off custom dimensions a store listing asks for → Image Resizer

Expert Tips

• ✻Design for 48 pixels first: if the concept reads at that size, it will look great at every larger size.
• ✻Never use transparency in iOS icon corners; fill the full square and let the system apply its mask.
• ✻Keep the source file in your repo so future size requirements can be regenerated from the same original.

Frequently Asked Questions