Instagram · free

Instagram Portrait post size — 1080 × 1350 px

Takes up more vertical space in the feed than a square, which is why most accounts use it.

Resized in your browserNo sign-up1080 × 1350 px

Drop an image here or click to choose a file

It is centre-cropped and resized to exactly 1080 × 1350 px in your browser — nothing is uploaded.

Instagram Portrait post specifications

Dimensions1080 × 1350 pixels
Aspect ratio4:5
FormatJPG or PNG
File sizeunder 8 MB

Takes up more vertical space in the feed than a square, which is why most accounts use it.

Why the exact size matters

When you upload something bigger than the platform expects, it is resized on their servers — usually with a fast algorithm that softens edges and introduces artefacts around text. Resizing to the exact pixel dimensions first means the platform has nothing to change, and what you approved is what appears.

The tool above centre-crops to 4:5 and then scales to exactly 1080 × 1350. If your source has an important element near an edge, crop it yourself with the image cropper first.

Other Instagram sizes

Every platform

Instagram Portrait post — FAQ

What is the Instagram portrait post size?
1080 × 1350 pixels (4:5). Takes up more vertical space in the feed than a square, which is why most accounts use it.
What file format should I use?
JPG or PNG. JPG is smallest for photographs; PNG is better when there is flat colour or text.
Does this tool upload my image?
No. The crop and resize both happen in your browser through the canvas API — there is no upload on this page.
Can I get a PNG instead of a JPG?
Yes, the tool offers both downloads from the same result.

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