Free Instagram Post Size Resizer

Resize any image to the perfect Instagram post size (1080 × 1350) and preview the safe zone before you post. No signup required.

Click to upload an image

PNG, JPG, WEBP up to 10MB

Post Size

Exports at 1080 × 1350px (4:5 aspect ratio)

Feed post & profile grid

On your profile grid, this post is center-cropped to a 1:1 square. Keep your subject inside the dashed box so nothing important gets cut.

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Beyond captions, PostHero helps you schedule posts, analyze performance, and grow your Instagram presence. Generate viral content ideas, plan your feed, and build your audience with our AI-powered platform.

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Post Scheduler

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How It Works

Resize any image to the perfect Instagram post size in 4 simple steps

1

Upload your image

Choose any photo from your device. Works with JPG, PNG, and WEBP formats up to 10MB.

2

Pick your Instagram size

Select Portrait (4:5), Square (1:1), Landscape, or Story / Reel. Drag and zoom to frame the perfect crop.

3

Check the safe zone

See exactly where Instagram's buttons, caption, and profile-grid crop overlap your image before you post.

4

Download & post

Export your image at the exact Instagram dimensions — ready to upload with no auto-cropping surprises.

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Generate captions, schedule posts, and grow your audience with AI-powered tools.

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Instagram Image Size Guide 2026

Every Instagram post size, dimension, and aspect ratio you need — always exported at the correct resolution.

Post typeSizeAspect ratio
Portrait post (recommended)1080 × 1350 px4:5
Square post1080 × 1080 px1:1
Landscape post1080 × 566 px1.91:1
Story & Reel1080 × 1920 px9:16
Carousel slide1080 × 1350 px4:5
Profile picture320 × 320 px1:1
Profile grid thumbnail1080 × 1080 px1:1
Feed / carousel ad1080 × 1350 px4:5

Tip: upload your image above and our tool automatically resizes it to any of these Instagram dimensions.

Why Resize for the Correct Instagram Post Size?

Get sharp, professional posts that look exactly right on every screen

Always the Perfect Dimensions

Export at the exact Instagram post size — 1080 × 1350 portrait, 1080 × 1080 square, or 1080 × 1920 for Stories and Reels.

No More Awkward Auto-Cropping

Instagram crops images that don't fit. Resize first so your photos appear exactly how you intended in the feed.

Preview the Safe Zone

See where buttons, captions, and the profile-grid crop overlap your image so nothing important gets covered.

Stories & Reels Ready

Frame vertical content for the full 9:16 screen and keep text and faces clear of Instagram's on-screen UI.

No Watermarks or Signup

Completely free with no hidden limits. Your images are processed in your browser and never uploaded to a server.

Fast & Easy to Use

Upload, choose a size, and download in seconds. No design skills or editing software needed.

Ready to level up your Instagram game?

Generate captions, schedule posts, and grow your audience with AI-powered tools.

Get started for free

Frequently Asked Questions

Everything you need to know about Instagram post sizes and our resizer

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