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.