Upload rectangle/design source
Upload a rectangular source or a card-news/infographic design.
Instagram Square Post Resize
The Instagram square (1080×1080px, 1:1) is the original ratio Instagram launched with in 2010, and it still anchors how the profile grid aligns. Since posts uploaded as 4:5 or 1.91:1 are always cropped back to 1:1 on the profile, square remains the safest ratio for brand accounts, archival series, or any content where grid consistency matters. While 4:5 wins on raw feed reach, 1:1 wins on multi-platform efficiency — the same crop drops into Facebook squares, Threads, X squares, and Pinterest at the same ratio, perfect for unified channel operations. It is also the most stable choice for text-heavy formats like card news or infographics. This tool crops rectangular sources to a precise 1080×1080px while previewing visual weight balance.
How to use
Center the visual weight
Align so the visual weight sits centered — for text-led content, equal left/right padding usually feels most stable.
Export 1:1 for cross-channel reuse
Export 1080×1080px JPG. The same cut also works on Facebook, Threads, X, and Pinterest with no rework.
When to use this tool
Per single post, 4:5 wins on reach — but if you weigh grid consistency, multi-channel reuse, and text-content readability together, 1:1 is still the default working ratio for serious Instagram operations.
Locking every post on a brand account to a single 1:1 master so the profile grid stays cohesive
Reusing one cut across Instagram, Facebook, Threads, X, and Pinterest to cut per-channel design work
Producing card news or infographics where symmetrical left/right padding keeps text readable
Instagram Square Post Spec Guide
Recommended sizes as of 2025. Square is the default Instagram post ratio.
| 1080 × 1080px |
| Aspect ratio 1:1 |
| File format: JPG, PNG |
| Images below 1080px are automatically upscaled. |
| Square images preview in the feed grid without cropping. |
| The square ratio is also the most reliable for carousel (multi-image) posts. |
| The full square is displayed as-is in the feed. |
| Aligns in a uniform 1:1 grid on the profile page. |
| Center-aligned text overlays work most effectively. |
| Maximum file size: 30MB (photos) |
| Supported formats: JPG, PNG |
| Recommended resolution: 1080px width or above |
FAQ
Is the square format still the default on Instagram?
Instagram now supports portrait (4:5) and landscape (1.91:1), but the profile grid still defaults to square previews, so 1:1 creates the most consistent layout.
What happens if I upload an image larger than 1080px?
Instagram automatically downsizes it to 1080px. Higher-resolution originals retain better quality after the downscale, so starting above 1080px is recommended.
What is the maximum file size for Instagram posts?
Photos can be up to 30MB. Supported formats are JPG and PNG. For high-resolution photos, use an image compression tool to reduce size before uploading.
Do carousel posts need to be square too?
The first image in a carousel sets the ratio for all subsequent images. Using 1:1 square for all slides ensures every frame displays without cropping.
Should I use JPG or PNG for Instagram?
JPG is smaller and uploads faster, while PNG preserves sharpness for text-heavy or graphic images. Use JPG for regular photos and PNG for designed graphics.