Resize Images

Resize Images
Exactly How You Want.

Mac image resizer with SNS optimization & batch App Icon generation

One-time purchase, no subscription
Download Free

Make Image Resizing Simpler

Resizing images for SNS posts, outputting multiple sizes for App Icons. Tired of manual work every time?

With DockBuddy Resizer, just drag & drop images and select a preset. Convert multiple images to your desired size at once.

See it in action

Demo Videos

See it in action

Drag & Drop Resizing

Just drop images and select a preset to batch resize

Key Features

Practical features shaped by professional needs

Batch Processing

Drag & drop multiple images to batch resize. Process hundreds of images in seconds.

SNS-Optimized Presets

Built-in presets optimized for Instagram posts, Instagram Stories, X/Twitter posts, and more.

Batch App Icon Generation

Generate all sizes of App Icons for macOS (16px-1024px) and iOS at once. Essential for developers.

Custom Presets

Save frequently used size settings as presets. Apply the same settings with one click next time.

Resize Modes

Long Edge
Apply specified size to long edge
Short Edge
Apply specified size to short edge
Fit
Resize to fit within specified dimensions
Fill
Crop to specified dimensions

SNS Presets

Instagram

  • Post (1080×1350)
  • Story (1080×1920)
  • Profile (320×320)

X / Twitter

  • Post (1200×675)
  • Header (1500×500)
  • Profile (400×400)

Facebook

  • Post (1200×630)
  • Cover (820×312)
  • Profile (170×170)

Supported Formats

Input Formats
JPEG, PNG, HEIC, TIFF, BMP, GIF
Output Formats
JPEG, PNG, HEIC

Perfect For

📷

Photographers

Those who post photos to blogs and social media

🛒

Shop Owners

Those who process large volumes of product images for e-commerce

💻

App Developers

Those who need to create App Icons

🎨

Designers

Those who optimize images for websites

Simple and Easy to Use

Intuitive interface, no complex operations needed

Easy Resize with Drag & Drop

Easy Resize with Drag & Drop

Just drop images to batch process

Rich Presets

Rich Presets

Built-in presets for SNS and App Icons

Flexible Output Settings

Flexible Output Settings

Freely set format, quality, and destination

Start for Free

Try the free version first. Upgrade to PRO when you're ready

Free

FREE

$0

Free forever

Up to 5 files
  • Basic resize features
  • SNS-optimized presets
  • Batch App Icon generation
  • Apple Silicon optimization
Download Free
Recommended
DockBuddy Resizer

PRO

$9.99

One-time purchase, no subscription

Unlimited image processing
  • Unlimited image processing
  • SNS-optimized presets
  • Batch App Icon generation
  • Custom preset saving
  • Apple Silicon optimization
Upgrade to PRO

Requires macOS 14.0 or later

* Price shown is for the US App Store. Prices may vary in other countries and regions.

Frequently Asked Questions

Answers to your questions about DockBuddy Resizer