Instagram Post Resizer

What matters

Instagram Post dimensions at a glance

A square Instagram post is still the safest choice for the main feed because it displays consistently across mobile and desktop. The 1080px width is the maximum Instagram renders, so going larger just adds file size without visual benefit.

Using 1080×1080 gives you the sharpest upload without fighting unpredictable crops. It also keeps design systems simple when producing repeatable branded content at scale.

Low-resolution images look soft after Instagram's compression pass. Off-ratio uploads get auto-cropped, which can cut off text or reframe the subject awkwardly in the profile grid.

Best practices

Use the crop intentionally

• Keep the focal subject centered enough to survive both feed display and profile grid thumbnails.
• Use bold, simple text rather than dense copy overlays — small text becomes unreadable after compression.
• Export as JPG at 85-90% quality for photos; use PNG only for graphics with flat colors and sharp edges.