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Instagram Post Aspect Ratio Tool

Instagram supports specific aspect ratios for posts. This tool helps you crop and resize images to 1:1 (square), 4:5 (portrait), or 1.91:1 (landscape) so they display perfectly in the feed.

How to Adjust Aspect Ratio

  • Load your image into the tool
  • Select the desired aspect ratio preset
  • Drag the crop area to frame your subject
  • Export the correctly proportioned image

Supported Ratios

  • 1:1 Square for classic grid posts
  • 4:5 Portrait for maximum feed visibility
  • 1.91:1 Landscape for wide scenic shots
  • 9:16 Vertical for Stories and Reels

Frequently Asked Questions

Which aspect ratio gets the most engagement?
4:5 portrait posts tend to get higher engagement because they occupy more screen space in the feed.
What happens if I upload the wrong ratio to Instagram?
Instagram will auto-crop your image, often cutting off important parts. Using this tool ensures you control the crop.

100% Private & Secure

This tool runs entirely in your browser. Your files and data never leave your device.

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