Scrawlspace › Image Tools
Instagram Post Resizer
Resize any photo to Instagram's 1080×1080 square post size, or switch to portrait or story size in one click.
How to use Instagram Post Resizer
- Drop a photo here or choose a file.
- It's cropped to fill 1080×1080, centred. Pick Post, portrait 4:5 or Story / Reel from the Size for list for other shapes.
- Choose the format; JPEG suits photos.
- Download the image.
Frequently asked questions
What is the best size for an Instagram post?
1080×1080 for a square post, or 1080×1350 for a 4:5 portrait that takes up more of the feed. Stories and Reels are 1080×1920.
Will Instagram crop my photo?
Not if it's already the right size. This tool crops it to the exact size first, so you know what will be shown.
Can I use it on my phone?
Yes. It works in mobile browsers: choose a photo from your gallery and download the result.
Is my photo uploaded?
No. Everything happens in your browser.