Drop an image here or browse
JPG, PNG, WebP, GIF or BMP · paste with Ctrl+VQuick widths:
Pre-set for you: every image you add is set to 1080 pixels wide with the aspect ratio locked, and saved as JPG at 90% quality. Change the numbers before pressing Resize image if you need another size. The full tool is the Image Resizer.
Instagram image sizes
| Format | Aspect ratio | Size in pixels |
|---|---|---|
| Square post | 1:1 | 1080 × 1080 |
| Portrait post | 4:5 | 1080 × 1350 |
| Landscape post | 1.91:1 | 1080 × 566 |
| Story or Reel | 9:16 | 1080 × 1920 |
| Profile picture | 1:1 (shown as a circle) | at least 320 × 320 |
Instagram’s profile grid now previews posts as 3:4 rectangles, so keep faces and text near the centre of the photo.
How to resize a photo for Instagram
- Get the shape right first. Crop to square (1:1), to 4:5 with the free ratio in the Image Cropper, or to 9:16 for stories. When you download the crop, a next-step bar offers Resize →, which opens the Image Resizer with your photo already loaded; then click its 1080 px (Instagram) quick width.
- Drop the photo in the box above. The width jumps to 1080 and the height adjusts to match.
- Press Resize image, check the preview and download.
- Upload the photo from your phone’s gallery as usual.
Why resizing before posting helps
Instagram resizes anything that is not 1080 pixels wide, and its fast server-side scaling can soften detail and add compression artefacts, especially on text and fine patterns. Uploading a photo that is already the right size, scaled down here with high-quality multi-step smoothing, gives the app less to change.
- Start from the largest original you have. A photo smaller than 1080 pixels will be enlarged, which cannot add detail.
- Phone photos are often 3000–4000 pixels wide: resizing to 1080 also makes them much quicker to upload on mobile data.
- For carousels, resize every slide to the same height so the swipe looks clean.
Frequently asked questions
Can I resize several photos for a carousel?
The resizer handles one image at a time. Add each slide in turn; the 1080-pixel width is applied automatically to every image you add.
Will Instagram still compress my photo?
Yes, Instagram compresses every upload. Starting from a clean 1080-pixel JPG keeps that extra compression to a minimum.
Does this work for Facebook and Threads too?
Yes. 1080 pixels wide is a safe size for Facebook and Threads feed images as well.
Related tools
Any width, height or percentage.
Image Cropper1:1, 4:5, 9:16 and free crops.
Word CounterCheck your caption against the 2,200-character limit.
More quick tools
Crop to squareCrop to 9:16Resize by percentageRemove white backgroundCharacter counter