Square Matte Generator for Social Media

Put non-square images on a colored matte. Perfect for Instagram grid posts.

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Drop an image here or

PNG, JPEG, or WebP

How to use

  1. Upload the image you want to put on a matte.
  2. Choose background color, aspect ratio, and padding amount.
  3. Preview the result and click Download to save.

Frequently asked questions

How do I make a non-square image fit in a square frame?

Upload your image, select 1:1 ratio, pick a background color, and download. The image centers on the matte without cropping.

What aspect ratios are available?

1:1 (square), 4:5 (portrait), 16:9 (landscape), and custom. Padding adjustable from 0% to 20%.

Does this tool crop my image?

No. The image is placed on a larger canvas. Your entire image is preserved.

Does this tool upload my images?

No. All processing runs in your browser. Your images never leave your device.

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