Posting photos on Instagram but they keep getting cropped awkwardly? That's because Instagram has specific image dimensions for every type of content — posts, stories, reels, profile pictures, and ads. Using the wrong size means Instagram will auto-crop your photo, often cutting off important parts.
In this guide, we'll show you the exact pixel dimensions for every Instagram format in 2026, and how to resize your images perfectly using a free online tool — no app download needed.
📐 Instagram Image Size Cheat Sheet (2026)
| Format | Dimensions (px) | Aspect Ratio | Max File Size |
|---|---|---|---|
| Square Post | 1080 × 1080 | 1:1 | 30 MB |
| Portrait Post | 1080 × 1350 | 4:5 | 30 MB |
| Landscape Post | 1080 × 566 | 1.91:1 | 30 MB |
| Story / Reel | 1080 × 1920 | 9:16 | 30 MB |
| Profile Picture | 320 × 320 | 1:1 | — |
| Carousel Post | 1080 × 1080 | 1:1 | 30 MB per image |
| IGTV Cover | 420 × 654 | 1:1.55 | — |
| Feed Ad | 1080 × 1080 | 1:1 | 30 MB |
Always use 1080px width as your minimum. Instagram compresses images below this width, resulting in blurry photos. For the sharpest results, upload at exactly the recommended dimensions.
How to Resize Images for Instagram (Step-by-Step)
You don't need Photoshop or any app. Here's how to resize any image for Instagram in under 30 seconds using ShiftPx's free Image Resizer:
Open ShiftPx Image Resizer
Go to shiftpx.in/resize-image in any browser — Chrome, Safari, Firefox, or Edge. Works on phones, tablets, and computers.
Upload Your Photo
Drag and drop your image onto the upload area, or click "Browse Files" to select from your device. Supports PNG, JPG, WebP, BMP, and GIF formats.
Select the Instagram Preset
Click the "Presets" tab in the resize settings. You'll see ready-made buttons for Instagram Post (1080×1080), Instagram Story (1080×1920), and more. Just click the one you need.
Download Your Resized Image
Click "Resize Images" and your perfectly-sized photo downloads instantly. Upload it directly to Instagram — no more awkward cropping!
📐 Resize Your Photos for Instagram Now
Free, instant, no sign-up. Your photos never leave your device.
Open Image Resizer →Which Instagram Size Should You Use?
Square (1080×1080) — Best for Feed Posts
The classic Instagram format. Square images take up the most real estate in the feed and are the safest choice for all types of content. Use this for product photos, quotes, graphics, and general posts.
Portrait (1080×1350) — Best for Engagement
Portrait images take up more screen space than square images, which means users are more likely to stop scrolling. Studies show portrait posts get 20-30% more engagement than square posts. Great for portraits, food photography, and lifestyle shots.
Story/Reel (1080×1920) — Best for Full-Screen Content
Stories and Reels use the full screen in 9:16 vertical format. This is the standard for all vertical video and story content. Make sure text and important elements are centered — the top and bottom 10% may be cut off on some devices.
Common Mistakes to Avoid
- Uploading low-resolution images: Always use at least 1080px width. Smaller images will be stretched and look blurry.
- Using the wrong aspect ratio: Instagram will auto-crop images that don't match its accepted ratios (1:1, 4:5, 1.91:1, or 9:16).
- Over-compressing: Keep JPEG quality at 85%+ to avoid compression artifacts. If possible, upload PNG for maximum quality.
- Ignoring safe zones: For Stories and Reels, keep text and faces in the center 80% of the image to avoid being cut off by UI elements.
Batch Resize Multiple Instagram Images
Need to resize multiple photos at once? ShiftPx supports batch resizing — upload as many images as you want and resize them all to Instagram dimensions in one click. Download individually or as a ZIP file. Perfect for social media managers handling multiple accounts.
Frequently Asked Questions
What is the best image size for Instagram in 2026?
For feed posts, 1080×1350 pixels (4:5 portrait) is the best choice because it maximizes screen real estate and drives the highest engagement. For stories and reels, use 1080×1920 pixels (9:16).
Can I resize images for Instagram on my phone?
Yes! ShiftPx works on all phones — iPhone, Android, iPad. Just open shiftpx.in/resize-image in your mobile browser, select the Instagram preset, and resize instantly. No app needed.
Does resizing reduce image quality?
Not if you do it correctly. ShiftPx uses high-quality resampling. Keep the quality slider at 90%+ when saving as JPEG. For lossless quality, save as PNG.
Is ShiftPx free to use?
Yes, 100% free with no limits. All processing happens in your browser — your photos are never uploaded to any server. No sign-up, no watermarks.