Online Tool Store
App Icon Generator
Upload a square image and generate every required iOS and Android app icon size, previewed and downloadable as PNGs. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example preview shown below - upload your own image to replace it.
How the app icon generator works
- Upload a square source image, ideally 1024×1024 or larger.
- Choose iOS or Android to generate that platform's full set of required icon sizes.
- Download each size individually as a PNG, ready to drop into your app's asset catalog.
The method
Each size is produced by drawing your source image onto a canvas set to that exact pixel dimension, then exporting the canvas as a PNG - the same approach any icon-generation tool uses under the hood.
FAQ
What source image should I use?
A square image at least 1024×1024 pixels works best - Apple's App Store icon size. Smaller sizes are generated by scaling down, which stays sharp; scaling up a small image would look blurry.
What sizes does the iOS set include?
20, 29, 40, 60, 76, 83.5, and 1024 pixels - the base point sizes iOS uses for Settings, Spotlight, home screen, and App Store icons across iPhone and iPad.
What sizes does the Android set include?
48, 72, 96, 144, 192, and 512 pixels, covering mdpi through xxxhdpi launcher icon densities plus the Play Store listing icon.
Do I need to add rounded corners or a safe zone myself?
Yes. iOS and Android both apply their own icon masking (rounded squares, circles, or squircles) at the OS level, so keep your source artwork's important content away from the edges.
Can I generate both iOS and Android icon sets from the same upload?
Yes - upload your source image once, then use Generate iOS set and Generate Android set separately to produce both platforms' full icon sets from that same image.
How we compare
| Feature | Online Tool Store | appicon.co | Manual resizing in an editor |
|---|---|---|---|
| No file upload - runs in your browser | ✓ | ✗ | ✓ |
| Full size set generated at once | ✓ | ✓ | ✗ |
| Free, no sign-up | ✓ | ✓ | ✓ |
For a quick, private way to generate every required icon size without uploading your artwork, App Icon Generator keeps it local.