Resize One Image Into All App Icon Sizes
Shipping an app to multiple platforms means generating dozens of icon files at different sizes and formats. Instead of manually resizing, you can start with a single high-resolution source image and automatically generate every size needed for iOS, Android, macOS, Windows, Linux, and PWA in one step.
Output Sizes
| Size | Format | Purpose |
|---|---|---|
| 1024x1024 | PNG | iOS and macOS App Store |
| 512x512 | PNG | Google Play Store and PWA |
| 256x256 | ICO | Windows large icon |
| 192x192 | PNG | PWA manifest icon |
| 180x180 | PNG | Apple Touch Icon |
| 48x48 | PNG | Android mdpi, Windows ICO |
| 32x32 | PNG | Favicon, macOS sidebar |
| 16x16 | PNG | Small favicon, Linux menu |
Conversion Details
Input
PNG/SVG
Output
PNG, ICO, ICNS, WebP
Best Practices
- 1Use a 1024x1024 PNG or SVG as your single source image — everything else scales down from it.
- 2Generate all platform sizes in a single batch to ensure visual consistency across every icon.
- 3Export platform-specific formats: PNG for iOS/Android, ICO for Windows, ICNS for macOS.
- 4Verify the smallest sizes (16px, 32px) still look recognizable — simplify your design if fine details are lost.
Common Mistakes
- Starting from a small image and upscaling — always start with at least 1024x1024 for clean downscaling.
- Using the same file for all platforms without format conversion — iOS needs PNG, Windows needs ICO, macOS needs ICNS.
- Not accounting for padding and safe zones — maskable and adaptive icons need extra space around the logo.
- Resizing a JPEG with heavy compression artifacts — start from PNG or SVG for the best source quality.
Resize Your Image for Every Platform
Upload one image and instantly get every app icon size and format — iOS, Android, Windows, macOS, Linux, and PWA.
Open GeneratorFrequently Asked Questions
What is the best source size for app icons?
1024x1024 pixels is the recommended source size. It's the largest size required by any app store (Apple App Store) and produces the best results when scaling down to smaller sizes.
Can I use one image for all platforms?
Yes, if you start with a high-resolution square image (1024x1024 PNG or SVG). A generator tool can resize and convert it into every format and size needed for iOS, Android, Windows, macOS, Linux, and PWA.
What format should my source image be?
PNG or SVG. SVG is ideal because it scales to any size without quality loss. PNG at 1024x1024 is the next best option. Avoid JPEG due to compression artifacts.