Updated: August 2026 • Verified v1.2
Social Media Image Resizer & Safe Zones Previewer
Creative & DesignDesignLocal Browser Execution: Your input is processed locally in your browser and is not sent to UTL servers.
Cover Scaling: Scale = max(CanvasWidth/ImgWidth, CanvasHeight/ImgHeight)Was this calculation helpful?
Understanding Your Results
Scales and center-crops images to standard platform dimensions on an HTML5 canvas with safe zone guides, exporting PNG/JPG files directly.
Practical Guidance & Next Steps
Use 'OpenGraph / Social Preview' (1200x630) for article thumbnails and link share cards on Twitter, LinkedIn, and Facebook.
What is this?
A client-side image editor that resizes, center-crops, and exports images for all standard social media platform dimensions.
How does it work?
1. Choose your platform preset (YouTube Banner, Twitter Header, OpenGraph 1200x630, Instagram).
2. Drag and drop any image file.
3. Preview canvas output with safe zone guidelines and click 'Download PNG' or 'Download JPG'.
Why use it?
Zero image upload delays, zero account signups, and exact pixel-perfect social banner formatting.
Technical Scope & Calculation Limitations
Canvas executes in client browser memory. Large images (>25 MB) may take 1-2 seconds to decode.
Frequently Asked Questions
The recommended size for OpenGraph preview images is 1200 x 630 pixels (aspect ratio 1.91:1).
Windows Desktop & Widget Options
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Desktop Widget
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