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1024×1024 px · PNG · square
Design assets often have to ship at a single canonical size — an icon set, a profile picture, a thumbnail — because platforms or frameworks will reject anything off-spec. iOS App Icon (1024) produces 1024×1024 PNG, the size the icon size expects.
| Output dimensions | 1024×1024 pixels |
|---|---|
| Aspect ratio | 1:1 (square) |
| Output format | PNG |
| Processing | 100% in your browser — no upload |
| Cost | Free, unlimited |
| Source | Official guidelines |
Audience: every iPhone, iPad, and Apple-watch app shipped via the App Store.
How iOS App Store ranks images: human App Review checks icon for trademark conflicts, lookalike rejection, and brand consistency. Posting at the platform's exact native dimensions (1024×1024 px) preserves your original framing and avoids the softening that happens when the platform's own resampler runs to fit its expected size.
Platform-specific note: Apple requires the app icon at exactly 1024×1024 px without an alpha channel, without rounded corners (the OS adds the rounding), and without transparency; the App Store renders the icon at sizes from 29×29 to the 512×512 grid view.
This preset is a deterministic recipe — every step has fixed parameters so the result is byte-identical across runs of the same input.
iOS App Icon (1024) crops your input to 1:1 and resizes it to 1024×1024 px as PNG — a 1.0-megapixel output. The work runs through canvas APIs and a WebAssembly image-encoder; the source image is decoded into an off-screen canvas, transformed in place, and re-encoded without any network upload.
Design deliverables to clients often require an exact pixel-size; this preset's deterministic output makes the deliverable repeatable. The browser-side path also means the file never leaves your device — relevant when the input contains personally identifiable information, screenshots of private documents, ID scans, or proprietary product photography.
1024×1024 px, saved as PNG.
The design this preset targets uses 1:1 framing. For passport photos this matches the printed-photo standard; for social posts it's the safe ratio that fills the feed without horizontal cropping.
PNG preserves hard edges and transparency that JPEG would smear. Icons, logos, and screenshots compress better as PNG when the image isn't photographic.
No. This preset runs entirely in your browser using WebAssembly + canvas APIs — no server round-trip. You can verify this in your browser's network panel: only static asset requests, no image upload. The file never leaves your device.