Upload one square master icon and download every iOS and Android size — with an Xcode-ready asset catalog — all generated in your browser.
Icon sizes are the least interesting hour of any app build. iOS wants a specific set. Android wants a different set. Miss one and the store rejects your submission, or your icon renders blurry on the one device you did not test.
Doing it by hand means exporting the same square image twenty times at twenty dimensions and naming each file correctly. This app icon generator does the whole set from one upload — and your icon never leaves your device.
Drop in a square PNG, 1024×1024 or larger recommended.
Starting large matters. Every other size is derived by scaling down, and downscaling stays sharp while upscaling does not. A 512px master will produce a soft 1024px icon, and the store listing is exactly where softness is most visible.
Toggle iOS, Android, or both, and only the sizes you need are generated.
Three controls shape the output. Padding adds breathing room around your mark — useful when the source artwork runs to the edges, since both platforms crop and round icons in ways that can clip a tight design. Background sets what sits behind a transparent icon, which matters because a transparent PNG can render unpredictably across launchers. And a rounded preview shows how the icon will actually appear once the platform applies its corner treatment, rather than as the square you uploaded.
That preview catches a specific mistake: text or detail near the corners that looks fine in your design file and gets clipped on the device.
One ZIP contains the full set, including an Xcode-ready asset catalog for iOS.
That last part removes a genuinely tedious step. Instead of dragging individual PNGs into the correct slots in Xcode and hoping none are misplaced, the catalog is structured correctly and drops straight into your project.
Processing happens in your browser. The icon is never uploaded to a server — which matters more than it sounds when the artwork belongs to a client or to an app that has not launched yet. The ZIP is only emailed if you specifically ask for it.
A developer is submitting a first iOS build. The designer supplied one 1024px PNG. TestFlight rejects the build over a missing icon size, and he now has an afternoon of exports ahead of him.
He drops the PNG in, selects iOS, adds slight padding because the logo sits close to the edges, and checks the rounded preview — which shows a corner of the mark being clipped. He increases padding, regenerates, and downloads the ZIP with the asset catalog.
Catalog into Xcode, rebuild, resubmit. Under ten minutes, and the corner problem was caught before review rather than after.
Most icons are judged at roughly 60 pixels on a home screen, not at the size you designed them.
Test yours at that size. If the wordmark becomes unreadable, drop the words and keep a symbol. If the detail turns to mush, simplify it. Strong contrast between the mark and background survives shrinking; subtle gradients and thin lines do not.
Indie developers shipping their own apps. Agencies delivering client builds. Designers preparing handoff assets. Anyone whose submission was rejected over an icon size. The Splash Screen Generator and Favicon Generator cover the neighbouring assets. If you are building the app itself, our mobile app development team ships end to end — the Khato ledger app case study shows what that looks like in practice.
Icon sizes should not be the thing that delays your submission. Drop your square master into the app icon generator above and download every size, correctly named, in one ZIP.
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