Compare · App icon generator

An app icon generator that doesn't upload your artwork

Every icon generator does roughly the same resizing. The differences that matter are three: whether your unreleased artwork gets uploaded to someone's server, whether you get the config files or just a folder of PNGs, and whether it's free. Here's the comparison, including where the hosted services are ahead.

	Hosted icon generators	Ziyarex icon generator
Artwork leaves your machine	Uploaded for processing	No. Resized on a canvas in your tab
Contents.json for Xcode	Sometimes	Yes, written for you
Android mipmaps and adaptive XML	Sometimes	Yes, all five densities
watchOS set	Rarely	Yes
Favicon, PWA icons, manifest	Usually a separate tool	Included, with the head snippet
Flattening transparency for the App Store	Varies	Yes, with a background colour you choose
Sign-up or watermark	Sometimes	Neither
Generating the artwork itself	Some offer AI icon generation	No. Bring your own image
Design editor	Some have one	No
Price	Free tier, or paid	Free

Pick theirs if…

You want the icon designed for you rather than resized — an AI generator or a template editor is a different product to this, and if you don't have artwork yet, that's what you actually need.

Pick ours if…

You have the artwork and you want every size, correctly named, with the Xcode and Android config files written, without your unreleased icon sitting on someone else's server.

Generate app icons All the free tools

The thinking behind it

We wrote the guides first and built the tool because we kept needing it.

Guide · 7 minEvery app icon size for iOS, macOS, Android and Chrome, one cheat sheetThe full list, per platform, with the rules that get builds rejected: alpha channels, safe zones and the corners you must not round yourself.

Guide · 6 minApp Store screenshot sizes that still get accepted in 2026Apple rejects wrong pixel dimensions outright, with an error that doesn't say which one. The exact numbers for iPhone, iPad, Mac, Watch, TV and Play.

Guide · 8 minNotarisation and the six things that get a Mac app rejectedNotarisation is an automated check, which means every failure has an exact cause and an exact fix. The six that account for nearly all of them.