Free Instagram Image Resizer
Prepare a photo for your next Instagram post. Start with a 1080 x 1350 portrait, or choose a square, taller portrait, or Story image.
Free to use. No signup. No watermark. Your images stay in your browser.
Your image
No image selected.
Your preview will appear here.
Position your crop
Drag the image or use the sliders to keep your subject in view. Then create your image to save this crop.
Preview fits this space. View at 100% to check the pixels.
Your image stays on this device. We do not upload it.
Image settings
Output limit: 4,096 px per side and 16 million pixels.
Choose an image to get started.
Your image is ready.
Download imageUse Mallary to share your next post.Your image is ready.
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From this tool to your next post
Take your Instagram photo further. Add it to Mallary, write your caption, and choose the other social accounts that should see it too.
Use the 4:5 or square preset for Mallary feed posts. A 3:4 photo needs a new crop. Download a separate tall version for Stories.
Make a Story version- Download your photo as JPG or PNG.
- Add it to Mallary and choose Instagram plus your other accounts.
- Review the image and caption for each network, then publish or schedule.
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Choose a frame for your Instagram photo
Choose a setting here, then check your image in the editor.
| Setting | When to use it |
|---|---|
| A 4:5 portrait 1080 x 1350 px | Start here for a person, product, or graphic that needs more height than a square. |
| A taller 3:4 portrait 1080 x 1440 px | Keep more room above and below your subject. Check how Instagram shows it before you post. |
| A square photo 1080 x 1080 px | Use equal width and height for a centered subject or a set of images with the same shape. |
| A Story image 1080 x 1920 px | Prepare a tall still image for a Story. Use the Story tool for more help with this crop. |
Canvas size. These presets make 4:5, 3:4, 1:1, and 9:16 images. They are starting canvases; check the final crop in the view where your post will appear.
Publishing with Mallary. Choose JPG or PNG. For a feed or multi-image post through Mallary, use 4:5 or square instead of the taller 3:4 preset. Story images use a separate post type.
See what Fit and Fill change
We resized this illustration with the same tool above. Fit keeps the full picture. Fill crops the edges to cover the frame.
1080 x 1350 px. PNG lossless encoding. White background. The examples use the tool's default image size.



These are smaller previews of real exports from this tool. Sizes above describe the full files. Your result depends on your source image and settings.
A few things to know.
The 4:5 preset makes a portrait frame. Try the square preset when your photo needs less space above and below.
Use the same shape for images that belong together. Check each crop before you build your post.
These are useful starting sizes. Check the post preview in Instagram, since different views can crop your image.
Your questions, answered.
Which Instagram image size should I choose?
Start with 1080 x 1350 for a 4:5 portrait or 1080 x 1080 for a square. A 1080 x 1440 option gives you a 3:4 portrait. Choose the shape that fits your photo and check it in Instagram.
How do I keep my full photo in the Instagram frame?
Choose Fit. It keeps the whole photo and adds space when its shape differs from your chosen frame. Fill covers the frame but crops the edges.
Can this tool resize an Instagram Reel?
This tool works with still images. It does not resize videos or make Reels. Use the Story image preset when you need a tall still image.