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.

Your image stays on this device. We do not upload it.

Image settings

Image settings

Clear areas use this color too. Animated images save as one still image.

For Instagram posts through Mallary, choose JPG or PNG.

Output limit: 4,096 px per side and 16 million pixels.

Choose an image to get started.

Use Mallary to share your next post.

Create, schedule, and share posts across 10 social networks. Use Mallary in your browser, or connect your favorite AI tools.

  • Post now or schedule for later
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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
  1. Download your photo as JPG or PNG.
  2. Add it to Mallary and choose Instagram plus your other accounts.
  3. Review the image and caption for each network, then publish or schedule.

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Integrates with the tools you already use

Alex - Developer at Foundry Marketing
"I automated the posting on 5 different platforms in under 20 minutes. Highly recommend!"
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Developer at Foundry Marketing
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Choose a frame for your Instagram photo

Choose a setting here, then check your image in the editor.

Choose a frame for your Instagram photo
SettingWhen 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.

Original landscape illustration with hills, a sun, a plant at the left edge, and the words A Fresh Perspective.
Original illustration2400 x 1600 px · 5,015,744 bytes
Resized illustration with the whole scene kept inside the frame and white space added.
Fit: keep the whole image1080 x 1350 px · PNG · 1,065,942 bytesThe full illustration stays visible. White space fills the rest of the frame.
Resized illustration filling the frame, with content cropped from its outer edges.
Fill: crop to the frame1080 x 1350 px · PNG · 2,017,380 bytesThe image fills the frame. Parts of the original near the edges are removed.

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.

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