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Okaysize

Resize image for an Instagram post

Resize a photo to a 1080 × 1080 square, the width Instagram keeps at full quality.

Drop an image, or choose a file

JPG, PNG, WebP, AVIF, HEIC or GIF. Any size.

Your file never leaves your device

Instagram limits

WhatOfficial limitSource
Feed photo widthUp to 1080 pxNarrower than 320 px is enlarged; wider than 1080 px is scaled down.help.instagram.com
Feed photo shape1.91:1 to 3:4 (1080 × 566 to 1080 × 1440)help.instagram.com

Limits verified Oct 2, 2026 against official sources.

Report an outdated limit

Why files fail on Instagram

Instagram scales anything wider than 1080 px down itself, and photos outside its allowed shapes get cropped automatically, sometimes cutting off what matters.

What this preset does

This preset crops to a centered square at exactly 1080 × 1080, so Instagram uploads it without further scaling.

Questions

What size is an Instagram post?
Instagram uploads photos up to 1080 px wide, in shapes from 1.91:1 landscape to 3:4 portrait. A square is 1080 × 1080.
Can I post taller photos?
Yes, up to 3:4 (1080 × 1440). Use the Instagram portrait preset.
Will Instagram compress it again?
Instagram recompresses every upload, but starting at its exact size avoids an extra resize.

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