ResizeGenius
Bulk Resize & Convert Images
Only for Mac
$4.99 · In‑App Purchases
Mac
Resize, convert, and optimize images in seconds. Batch process dozens of images with precision, all locally on your Mac.
ResizeGenius is a fast, native macOS app for effortless batch resizing, scaling, and converting images. Designed with a clean SwiftUI interface, ResizeGenius streamlines your image workflow—enabling you to process dozens of images simultaneously with pixel-perfect precision and complete control.
Whether you're prepping photos for web publishing, formatting screenshots for the App Store, generating social media assets, or converting image formats in bulk, ResizeGenius delivers the tools you need in seconds.
Key Features:
• Batch Processing: Drag and drop multiple images at once and resize or convert them all in a single click.
• Versatile Scaling Modes:
- Match Width or Match Height (preserves natural aspect ratios)
- Fit within Bounds (constrain within maximum dimensions)
- Contain in Canvas / Pad to Fit (fit inside exact dimensions with transparent, white, black, or custom color backgrounds)
- Crop to Fill (fill target dimensions completely)
- Keep Original Size (ideal for bulk format conversion)
• Visual Mode Diagrams: Intuitive real-time vector illustrations show you exactly how each mode crops, pads, or scales before processing.
• Quick-Access Presets: One-click sizes optimized for social media, web standards, and Apple device screenshots (iPhone, iPad Pro).
• Wide Format Support: Export images to JPEG, PNG, HEIC, WebP, and TIFF.
• Quality Control: Fine-tune compression quality sliders for JPEG, HEIC, and WebP exports to optimize file sizes.
• File Renaming Rules: Automatically format output filenames with custom delimiters, lowercase conversions, or unique random UUIDs.
• Side-by-Side Comparison: Press Space on any processed item for an instant before-and-after visual comparison.
• Re-Resize Workflow: Right-click any output file to instantly re-process the original with updated settings.
• Drag-and-Drop Anywhere: Drag files directly from Finder or web browsers (Safari, Chrome, etc.).
• 100% Local & Private: All image processing runs natively on your Mac. Your photos never leave your device.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.ujiapps.com/resizegenius/privacy-policy
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Hi, this is Grace, the developer of ResizeGenius. In this version, I did a huge revamp of the app.
- Modernized UI with glassmorphism and macOS-style design
- Added support for contain in canvas mode
- Added support for exporting to WebP and lossy WebP formats
- Added preview of the scaling options. You can see how the image will be resized in real-time.
The developer, Le Huang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Le Huang
- Size
- 408.5 KB
- Category
- Productivity
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- All Access $0.99
- All Access $9.99
- Premium Monthly $0.99
- Copyright
- © Grace Huang 2026