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Instagram Post Size Guide & Resizer

Prepare your images for Instagram feeds without awkward cropping or blurriness. Check portrait, square, and profile grid center cuts in real time.

Resolution 1080 × 1350 px

Aspect Ratio 4 : 5

Feed Screen Area Maximum (+35%)

Supported Format JPG • PNG

1080 × 1350 px 4:5 Vertical Feed

Portrait 4:5 takes up the most vertical real estate in the Instagram mobile feed, generating maximum engagement.

Verify Post Image Specs

Upload your photo to test whether Instagram will crop or downscale it.

Click or drop photo to verify

Download Blank Template

Get an exact PNG canvas template matching your selected format (1080 × 1350).

How to Use This Tool

How to Use This Tool – Instagram Post Size Guide & Resizer

Select Post Aspect Ratio

Choose between Portrait (4:5, 1080x1350), Square (1:1, 1080x1080), or Landscape (1.91:1, 1080x566).

Position & Crop Image

Scale and align your photo with live guides to frame your subject perfectly.

Download Instagram-Ready Photo

Save your photo in crystal-clear quality ready to publish to your Instagram feed.

Key Features & Capabilities

Key Features & Capabilities – Instagram Post Size Guide & Resizer

Feed-Optimized Presets

Pre-configured for 1080x1350 (Portrait), 1080x1080 (Square), and 1080x566 (Landscape).

Profile Grid Preview

Simulates the 1:1 square center crop that appears on your public Instagram profile grid.

High-Resolution Export

Exports at exact recommended pixel densities to avoid aggressive Instagram compression.

Canvas Background Fill

Add blur, color fill, or clean white borders to fit any photo without unwanted cropping.

Lossless Browser Rendering

Processes full-resolution photos locally with high-fidelity canvas bicubic smoothing.

No Watermarks or Compression

Download clean, unwatermarked images with zero hidden subscriptions.

FAQ

Frequently Asked Questions

What is the best image size for Instagram posts?

The best size is 1080 × 1350 pixels (4:5 portrait ratio). It takes up the maximum vertical screen space on mobile feeds, increasing user engagement and visibility.

Why does Instagram blur or compress my uploaded photos?

If you upload an image larger than 1080px wide or in an unsupported aspect ratio, Instagram re-compresses it. Sizing your image to 1080px beforehand prevents quality degradation.

How will a portrait post look on my profile grid?

Instagram crops portrait posts to a 1:1 square centered in your profile feed. Make sure key subjects are centered vertically.

What are the dimensions for square Instagram posts?

Square Instagram posts are exactly 1080 × 1080 pixels with a 1:1 aspect ratio.

What image format does Instagram recommend?

Instagram supports JPG and PNG formats. JPG is recommended for photos to maintain manageable file sizes.

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