App Icon Generator

Create all necessary app icon sizes for App Store and Google Play instantly.

Upload your app icon

Recommended: 1024×1024 PNG without rounded corners

Native iOS & Android Mobile App Icon Package Builder

Submitting apps to the Apple App Store and Google Play requires exporting dozens of exact pixel dimensions, from tiny 20px notification icons up to master 1024px store artwork. ImageUp takes your single master artwork and automatically generates production-ready Xcode Asset Catalogs (`AppIcon.appiconset/Contents.json`) and Android `res/mipmap` directory hierarchies in one click.

How it works

1

Upload 1024×1024 Master Icon

Drop your square master artwork (PNG format with flat edges, no pre-rounded corners).

2

Select Target Platforms

Choose iOS (iPhone, iPad, Watch), Android (Adaptive mipmap sizes), or Both.

3

Download Developer ZIP

Unzip and drag the generated folders directly into Xcode or Android Studio.

Why use this tool?

Xcode Asset Catalog Ready

Generates the complete `AppIcon.appiconset` folder with formatted `Contents.json` ready for direct drag-and-drop into Xcode.

Android Mipmap Structure

Includes all standard DPI densities: `mipmap-mdpi` (48px), `hdpi` (72px), `xhdpi` (96px), `xxhdpi` (144px), `xxxhdpi` (192px), plus 512px Play Store asset.

Interactive Platform Previews

Inspect realistic simulated previews on an iOS dark springboard and an Android circular adaptive icon launcher.

Frequently Asked Questions

Should I pre-round the corners of my iOS app icon?

No. Upload a perfectly square image. Apple's iOS springboard and App Store rendering engine automatically apply the continuous squircle curve and border masks.

Does Apple permit transparency in iOS app icons?

No. Apple strictly requires opaque background pixels for App Store master icons. Any transparent regions will be filled with black on iOS.

How do I import the generated icons into Xcode?

Open your Xcode project, navigate to `Assets.xcassets`, delete the existing empty `AppIcon`, and drag the extracted `AppIcon.appiconset` folder directly into the asset catalog navigator.

How do I install the icons in Android Studio?

Copy the generated `mipmap-mdpi`, `mipmap-hdpi`, `mipmap-xhdpi`, `mipmap-xxhdpi`, and `mipmap-xxxhdpi` folders into your Android project's `app/src/main/res/` directory.

Perfect App Icons, Without the Hassle

App icons come in a tangle of sizes: tiny notification icons, home-screen sizes, and the 1024px master for storefronts, each in a folder structure Xcode or Android Studio expects.

Drop in a square 1024x1024 master and this generator produces every required dimension, handles Apple's squircle masks and Android's circular adaptive icons, and organizes everything into developer-ready folders with the asset catalog config files included.

A live preview shows how the icon looks on a home screen before you download. Resizing runs in the browser, so unreleased app designs never leave your device.

Related reading: creating the full favicon and app icon stack.

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