Instagram Image Resizer
Crop any photo into a perfect 1080×1080 Instagram square post, right in your browser. Nothing is uploaded anywhere.
Drop an image here or click to upload
JPG, PNG, or WebP, processed entirely on your device.
Who uses this tool?
A quick, no-signup way to get any photo Instagram-ready.
Social media managers
Resize client photos for Instagram posts and stories without switching to a separate design tool.
Small business owners
Get product photos and promotions Instagram-ready in seconds, no design skills required.
Content creators & influencers
Crop your best shots to the exact square, portrait, or story size before you post.
Marketing teams
Keep every campaign image consistently sized across the whole team, no shared design software needed.
How it works
Four steps, entirely in your browser.
1. Upload your photo
Choose an image from your device. It's processed locally and never leaves your browser.
2. Pick a format
Select Square Post, Portrait Post, Landscape Post, Story/Reel, or Profile Picture.
3. Adjust the crop
Drag and resize the frame until the shot looks exactly how you want it.
4. Download
Save your resized image, ready to upload to Instagram.
Frequently asked questions
Everything you need to know before you start.
Is my image uploaded anywhere?
No. Everything happens locally in your browser using your device's own processing power. Your photo is never sent to our servers or stored anywhere.
What image formats can I upload?
JPG, PNG, and WebP are all supported.
Do I need an account to use this tool?
No. The Instagram Image Resizer is free to use without signing in. If you're signed in to PostPlanIt, you'll also find it under Tools in the sidebar.
Will cropping reduce my image quality?
The tool exports at the exact pixel dimensions for each format at high JPEG quality. If your original photo is smaller than the target size, it will be upscaled slightly to fit, which can soften fine detail.
Can I resize more than one image?
Yes. Click Remove image after downloading, then upload your next photo. There's no limit on how many images you can process.
Which format should I use for a regular Instagram post?
Square Post (1080×1080) is the classic Instagram format. Portrait Post (1080×1350) uses more vertical space in the feed. Story/Reel (1080×1920) is for Stories and Reels.