Screenshot Resizer

Resize and export App Store screenshots instantly.

Download on the Mac App Store

About

ScreenshotResizerApp by Justbox is a lightweight macOS tool for developers and designers who need perfectly sized App Store screenshots.

Drag your screenshot folder into the app, select device formats, and export optimized PNG or JPEG files in seconds.

Features

Ready-made sizes for all App Store devices
Custom width & height support
No-Crop Mode for non-destructive resizing
PNG / JPEG export with transparency or color background
Optional lossless compression via pngquant
Progress indicator & log output

Privacy

All processing happens locally on your Mac. No uploads. No tracking. No ads.

Links