About this tool
Square Crop automatically fits the largest possible square over your image and lets you drag it into exactly the right position. Perfect for social media posts, product thumbnails and app icons that require a 1:1 ratio.
How it works
- 1Upload your image — any format is supported.
- 2The tool calculates the largest square that fits the image.
- 3Drag the overlay to reposition, or drag a corner handle to resize.
- 4Download crops the image to that square at full resolution.
Common use cases
- ✓Instagram and Facebook square posts
- ✓Product listing thumbnails
- ✓App store icon preparation
- ✓Website card images
Privacy first. Square Crop runs entirely inside your browser using the HTML5 Canvas API. Your images are never uploaded to any server, stored anywhere or shared with third parties. Everything happens locally on your device.
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Scale down images so the longest side fits within a maximum size.
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Smart Trim
Automatically remove transparent or solid-colour borders from images.