What is the best image size for Instagram posts?

Instagram recommends 1080×1080 pixels for square posts, 1080×1350 for portrait posts, and 1080×566 for landscape posts. Square (1080×1080) is the most common and versatile.

Will Instagram compress my uploaded image?

Instagram applies its own compression on upload. Starting with a 1080px-wide image at high quality minimizes visible compression artifacts on the platform.

Can I resize for Instagram Stories too?

Yes! Use our Resize for Instagram Story tool with 1080×1920 dimensions optimized for full-screen Story display.

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Instagram Post Size - 1080×1080 Resizer

Name: Resize for Instagram - ElitePX
Rating: 4.9 (1243 reviews)
Author: ElitePX

Resize images to the perfect 1080×1080 Instagram post size. Free and instant.

Resize images to the perfect 1080×1080 Instagram post size. All processing happens locally in your browser. No image is ever uploaded to a server, making instagram post size - 1080×1080 resizer on ElitePX completely private and instant.

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This is a free online tool. No account required.

Your images are processed entirely in your browser
Files are never uploaded to any server
No signup, no watermarks, no limits.
Works on any modern browser, desktop or mobile.

Also available at the main tool page: ElitePX: Resize for Instagram

Why Use This Tool?

Pixel-Perfect Instagram Posts

Images are resized to exactly 1080×1080 pixels, the recommended resolution for Instagram square posts.

No Quality Loss

Our Lanczos3 resampling algorithm maintains sharp details even when scaling up or down significantly.

100% Private

Your photos are processed locally in your browser. Nothing is uploaded to any server.

Supports All Formats

Upload PNG, JPG, WEBP, AVIF, BMP, TIFF, or GIF. We handle them all.

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Resize images to the perfect 1080×1920 Instagram Story size.

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Resize images to the optimal 1200×630 Facebook sharing size.

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Instagram Post Size - 1080×1080 Resizer is powered by Resize for Instagram on ElitePX. The canonical version of this tool is available at elitepx.com/tools/resize-for-instagram. All image processing happens in your browser. Your files never leave your device.