App icon generator — every iOS, Android & web size

What gets generated

Every platform size covered

FAQ

Quick answers

What size should an iOS app icon be?

Apple requires a 1024×1024 pixel master icon for App Store submission. Inside the app, additional sizes are needed: 20pt, 29pt, 40pt, 60pt, 76pt, and 83.5pt — each rendered at 1×, 2×, and 3× scale. This generator produces every size from a single 1024×1024 source so you don't have to resize manually in Xcode.

What size is a Google Play app icon?

Google Play requires a 512×512 pixel high-res icon for the Play Store listing, plus per-density launcher icons (mdpi 48, hdpi 72, xhdpi 96, xxhdpi 144, xxxhdpi 192) for inside the app. This generator outputs all of them in the standard mipmap-* folder structure ready to drop into your Android project.

What format should I upload to the generator?

Upload a PNG or JPG at 1024×1024 pixels minimum. PNG is recommended because it preserves transparency for adaptive icon use cases. The image processes entirely in your browser — nothing is uploaded to a server.

Should my app icon have transparency or rounded corners?

iOS app icons must be square (Apple auto-applies the rounded corners on the device — never bake them into your asset). Android adaptive icons separate the background and foreground layers but the standard launcher icon is square too. Submit a square image; the OS handles the rest.

Does the generator work offline?

Yes. After the page loads, the entire generation flow runs in your browser using the HTML5 Canvas API. Nothing leaves your device, and you can use it without an internet connection once the page is open.

Is there a limit on file size?

There's no hard limit since processing is local. Practically, anything up to ~10 MB processes instantly on a modern laptop. Larger source files (e.g. 4096×4096 SVGs exported as PNG) work fine but take a couple seconds to render the first time.