Resize a photo to the Instagram portrait post ratio.
Instagram's portrait post format (4:5 ratio) gets more vertical screen space in the feed than a square post - this tool crops to that exact ratio instead of a square.
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Try Free Resume Builder Try Free Invoice BuilderA 4:5 portrait post takes up more vertical space in a follower's feed than a 1:1 square post, which many creators use deliberately for more visual presence per post - this is Instagram's maximum allowed portrait ratio for a single image post.
Yes - Instagram caps single-image posts at a 4:5 ratio; anything taller gets cropped by the app on upload.
It's a style choice - 4:5 gives more feed presence, while square keeps a more uniform grid look on your profile.