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Free Tool

One icon. Every size.

Upload your app icon and download all 41 sizes for iOS, Android, web, and macOS in a single ZIP.

Bilt icon16px
Bilt icon29px
Bilt icon40px
Bilt icon80px
Bilt icon120px
Bilt icon180px
Bilt icon512px
Bilt icon1024px

Platforms

41 icons will be generated

PlatformNameSize
iOSiPhone Notification40×40
iOSiPhone Settings58×58
iOSiPhone Settings @3x87×87
iOSiPhone Spotlight80×80
iOSiPhone Spotlight @3x120×120
iOSiPhone App120×120
iOSiPhone App @3x180×180
iOSiPad Notifications40×40
iOSiPad Notifications @2x80×80
iOSiPad Settings29×29
iOSiPad Settings @2x58×58
iOSiPad Spotlight40×40
iOSiPad Spotlight @2x80×80
iOSiPad App76×76
iOSiPad App @2x152×152
iOSiPad Pro App @2x167×167
iOSApp Store1024×1024
AndroidLDPI36×36
AndroidMDPI48×48
AndroidHDPI72×72
AndroidXHDPI96×96
AndroidXXHDPI144×144
AndroidXXXHDPI192×192
AndroidGoogle Play Store512×512
WebFavicon 16x1616×16
WebFavicon 32x3232×32
WebFavicon 48x4848×48
WebApple Touch Icon180×180
WebWeb Manifest 192192×192
WebWeb Manifest 512512×512
WebOG Image Icon1200×1200
macOSmacOS 16x1616×16
macOSmacOS 16x16 @2x32×32
macOSmacOS 32x3232×32
macOSmacOS 32x32 @2x64×64
macOSmacOS 128x128128×128
macOSmacOS 128x128 @2x256×256
macOSmacOS 256x256256×256
macOSmacOS 256x256 @2x512×512
macOSmacOS 512x512512×512
macOSmacOS 512x512 @2x1024×1024

How it works

Three steps. Zero friction.

01

Upload your icon

Drop a single high-res image — PNG, JPG, WebP, or SVG. 1024×1024px recommended.

02

Pick your platforms

Toggle iOS, Android, Web, or macOS. Each comes with every required size.

03

Download the ZIP

One click generates all sizes with correct filenames, organized by platform folder.

Every platform

Built for every app store requirement

4.8
GET
29
40
58
80
120
180
1024

iOS & iPadOS

17 sizes

App Store, Spotlight, Settings, Notifications — all 17 sizes Apple requires.

29px → 1024px

ldpi
mdpi
hdpi
xhdpi
xxhdpi
xxxhdpi

Android

7 sizes

LDPI through XXXHDPI launcher icons plus the 512px Google Play Store listing icon.

36px → 512px

16×16 favicon
180×180 touch
512×512 PWA

Web & PWA

7 sizes

Favicons, Apple Touch Icon, web manifest icons, and OG image — all covered.

16px → 1200px

16px
@2x
32px
@2x
128px
@2x
256px
@2x
512px
@2x

macOS

10 sizes

Every .icns size from 16px to 512px@2x for native macOS app distribution.

16px → 1024px

Why it matters

Your icon is the first thing users see

Before they read your name, before they see your screenshots — they see your icon. It appears on the home screen, in search results, in notifications, and in the App Store listing. A pixel-perfect icon at every size is non-negotiable.

Crisp at 29px for Settings, sharp at 1024px for the App Store
Proper mipmap densities for every Android device
Retina-ready favicons that look great in browser tabs
9:41
Mail
FaceTime
Bilt
Notes
Music
Weather
Photos
Settings

Icon knowledge

Things every app developer should know

1024px

Required minimum

Apple requires exactly 1024×1024px with no transparency for the App Store.

108dp

Android adaptive canvas

Android adaptive icons use 108dp with a 72dp safe zone. The OS masks the rest.

1999

Year of the favicon

The name "favicon" is short for "favorite icon" — coined with Internet Explorer 5.

50+

Views per day

Your app icon appears on screen over 50 times daily on the average user's phone.

22.37%

Corner radius

iOS uses a superellipse with a ~22.37% corner radius — not a simple rounded rect.

6.84M

Apps worldwide

There are 6.84 million apps across the App Store and Google Play combined.

Ready to build?

Got the icon. Now build the app.

Bilt turns your idea into a native iOS app in minutes. No code required.

Start Building