Development · GitHub repo
appscreen
Open-source generator for App Store screenshots with 3D device mockups
appscreen is a free, browser-based tool for designing App Store marketing screenshots. It lets you customize backgrounds, add text overlays, and position device frames at 3D angles using WebGL mockups. It eliminates the need for complex design software when preparing app listing assets.
What it's for
- Generate App Store and Play Store marketing screenshots directly in the browser
- Render mobile app UI inside angled 3D device mockups
- Translate screenshot headlines and descriptions into multiple languages
- Export formatted image sets ready for app store submissions
Features
- 3D device mockup rendering using Three.js with customizable angles and frame colors
- Support for both iPhone and Android phone models
- Customizable background gradients, text overlays, and Lucide icons
- AI-assisted headline generation and multi-language translation integration
- IndexedDB local persistence with project import and export
- Runs entirely in the browser via GitHub Pages with no account required
Pricing
Open source. Free and open source (MIT license)
Details
- Type
- GitHub repo
- Category
- Development
- Topic
- App Store Optimization
- Open source
- Yes
- Platforms
- Web
- For
- Mobile app developers and indie hackers
- Alternative to
- AppMockUp, Screenshots Pro, Rotato
- Tags
- app store, screenshots, mockups, design tools, ios dev, indie dev
Why it was saved
- @tom_doerr: App Store screenshots are required marketing assets and are usually painful to assemble by hand; this tool automates the mockup and layout work in the browser for free.
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