Resize images for Instagram- square post 1080×1080, portrait 1080×1350, landscape 1080×566, Story 1080×1920. Free online, no upload.
All recommended Instagram image dimensions for 2026. Upload at these exact sizes to avoid any quality loss from platform-side scaling.
| Type | Width × Height | Aspect Ratio | Notes |
|---|---|---|---|
| Square Post | 1080 × 1080 px | 1:1 | Recommended for feed posts |
| Portrait Post | 1080 × 1350 px | 4:5 | Most space in feed |
| Landscape Post | 1080 × 566 px | 540:283 | 16:9 crop equivalent |
| Story / Reels | 1080 × 1920 px | 9:16 | Full-screen vertical |
Open ResizePack, drop your image and select the Instagram preset that matches your post type (Square, Portrait, Landscape or Story).
Review the preview- use CropRatio to crop to the exact ratio first if your photo has the wrong proportions.
Click Resize, then Download. Your image is ready to upload directly to Instagram without any quality loss from re-compression.
Ready to resize?
Use Batch Resize for batch resizing with social media presets, or Crop & Ratio to crop to the exact aspect ratio first.
For feed posts, 1080×1350 px (4:5 portrait ratio) gives you the most vertical space in users' feeds. For Stories and Reels use 1080×1920 px (9:16). Square posts are 1080×1080 px.
Instagram always re-encodes uploads, but providing an image at exactly the right dimensions (1080 px wide) prevents Instagram from upscaling or downscaling before its own compression- resulting in the sharpest possible output.
JPEG for photos (Instagram re-encodes everything anyway) and PNG for graphics with transparency. Keep file size under 30 MB. Use our Compress tool to reduce file size without visible quality loss.
You can, but you should resize separately. A 1080×1080 square will have black bars on a 9:16 Story canvas. Use ResizePack to export both sizes at once.
No uploads
All resizing happens entirely in your browser. Your images never leave your device.
Batch process
Resize multiple images at once with the same settings. Download all as ZIP in seconds.
Free forever
Core resize tools are completely free. No watermarks, no ads, no file limits.
Need dimensions for every platform in one place? Read our complete 2026 cheat sheet- every network, every format, updated for this year.
Social Media Image Sizes 2026