Magic Resizer
Free Instagram Image Resizer
Resize and crop your photos to the perfect Instagram dimensions, including square, portrait, landscape, and Story/Reel, without leaving your browser.
Everything happens in your browser, no software to install, no account required for your first five images.
Your images stay on your device, nothing is uploaded to Buffer.
Resize images for other networks
Instagram image sizes & requirements
Use these recommended sizes for the sharpest Instagram images, and keep within the upload limits below so nothing is rejected or compressed.
| Format | Size (pixels) |
|---|---|
| Square post | 1080 × 1080 |
| Portrait post | 1080 × 1350 |
| Story / Reel | 1080 × 1920 |
| Landscape post | 1080 × 566 |
Upload requirements
- PNG is recommended for the sharpest quality.
- Use the sRGB color profile to avoid color shifts.
Sizes and formats are based on Buffer’s ideal image sizes and formats guide.
FAQs
What is the best image size for Instagram?
What is the best image size for Instagram?
The recommended Instagram image sizes are: Square post (1080 × 1080 px), Portrait post (1080 × 1350 px), Story / Reel (1080 × 1920 px), Landscape post (1080 × 566 px). Buffer's free image resizer crops and resizes your photo to each of these in one step.
What image formats does Instagram support?
What image formats does Instagram support?
Instagram accepts JPG, PNG, WebP, HEIC. The maximum file size is 8 MB.
What aspect ratio should Instagram images use?
What aspect ratio should Instagram images use?
Instagram works best with a 4:5 to 1.91:1, or square (1:1) aspect ratio. The resizer applies the right crop automatically.
Do I need a Buffer account to resize Instagram images?
Do I need a Buffer account to resize Instagram images?
No. You can resize up to 5 images without an account. After that, create a free Buffer account to keep resizing for free.
Are my images uploaded to a server?
Are my images uploaded to a server?
No. All resizing happens directly in your browser, so your images are never sent to or stored on Buffer's servers.
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