Instagram Post Resizer
Upload any photo and it's automatically scaled and center-cropped to Instagram's 1080×1350 post size, with no stretching — free, private, and processed entirely in your browser.
About the Instagram Post Resizer
Instagram's feed now favors tall, portrait photos over the old square crop — a photo sized to the platform's exact dimensions claims more screen space in the grid and scrolling feed than one Instagram has to crop or letterbox itself. Uploading an oddly-sized photo means Instagram decides how to crop it for you; resizing it yourself first means you decide.
This tool resizes any photo to Instagram's current recommended post size of 1080×1350 pixels (a 4:5 portrait ratio) by scaling and center-cropping it to fill the exact frame — never stretching or distorting your photo to force-fit the dimensions. Everything happens locally in your browser; your photo is never uploaded to a server.
How to Resize a Photo for Instagram
Step 1
Upload your photo
Drag and drop any JPG, PNG, or WEBP photo, or choose one from your device.
Step 2
Auto-fit to Instagram's size
Your photo is scaled and center-cropped to exactly 1080×1350 pixels, with no stretching.
Step 3
Download and post
Save the resized photo, ready to upload straight to Instagram.
Frequently Asked Questions
Why 1080×1350 instead of a square 1080×1080?
Instagram's algorithm currently favors the taller 4:5 portrait ratio for feed posts — it takes up more vertical space in the scrolling feed and grid than a square photo. Square posts (1080×1080) still work fine if you prefer that look.
Will my photo be stretched to fit?
No. The tool scales your photo to cover the target frame, then center-crops any excess from the edges — it's never squeezed or stretched to force-fit the dimensions.
What if my photo is a different aspect ratio than 4:5?
The center of your photo is kept and the edges are cropped to reach 4:5 — if your subject isn't centered, crop it yourself first with our Crop Image tool for more control.
Is my photo uploaded anywhere to resize it?
No. Resizing and cropping happen entirely in your browser.