Developer Tools

Developer Utility Tools

Privacy-first web utilities for mobile engineers. Instant browser execution with zero server uploads.

Instant ZIP Export iOS • Android • Expo

Android • iOS • ExpoNew

Splash Screen Generator (Android 12+, iOS & Expo)

Turn one logo into Android 12+ splash drawables with themes.xml, an iOS LaunchScreen.storyboard with imageset and colour set, and Expo splash-icon.png with the app.json block — previewing the circular mask that crops most splash screens.

Live preview of the Android 12 circular mask and 192dp safe zone
drawable-mdpi to xxxhdpi + values/themes.xml and values-night colours
LaunchScreen.storyboard, SplashIcon.imageset and a dark-aware colour set
Expo app.json config for SDK 50+ and the legacy expo.splash shape
Dark mode variants and transparent-margin trimming
Splash background matched to your logo's own colours, contrast-checked

Open Splash Generator

iOS • Android • Expo

App Icon Generator (iOS, Android & Expo)

Resize and export 1024×1024 master icons into Xcode AppIcon.appiconset (with Contents.json), Android mipmap folders (mdpi to xxxhdpi), adaptive foregrounds, and Google Play Store 512px assets.

Xcode AppIcon.appiconset with auto-generated Contents.json
Android mipmap-mdpi to xxxhdpi + 108dp adaptive foregrounds
Google Play 512×512 icon & Expo app.json ready assets
Interactive zoom (-30% to +40%) & background color fill
Instant ZIP download ready to drop into your project

Open Icon Generator

Need another mobile developer utility?

Have a tool request for React Native, Android asset handling, or iOS workflows? Let me know.

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