Instagram Post Resizer
Resize photos to exact Instagram sizes: square 1080×1080, portrait 1080×1350, landscape 1080×566 or story 1080×1920 — with a no-crop white-border mode.
About the Instagram Post Resizer
Instagram supports four main formats: square posts at 1080 × 1080, portrait posts at 1080 × 1350 (4:5 — the format that takes up the most feed space), landscape posts at 1080 × 566, and stories or Reels covers at 1080 × 1920. Upload anything else and Instagram forces a crop that often cuts off heads and edges.
This tool resizes your photo to any of those exact sizes in two modes. Crop-to-fill trims the image to fill the frame completely, while the popular "no crop" mode fits your entire photo inside the frame and fills the rest with clean white padding — the classic full-photo Instagram look that keeps every pixel visible.
Processing is done locally in your browser, so photos are never uploaded. Download a high-quality JPG at exactly the resolution Instagram renders, with no watermark and no signup.
How to Use the Instagram Post Resizer
- 1Upload your photo.
- 2Choose the Instagram format: square, portrait, landscape, or story/Reel.
- 3Pick a fit mode — crop to fill, or no-crop with white padding.
- 4Generate and download the Instagram-ready JPG.
Frequently Asked Questions
What is the best image size for an Instagram post?
Portrait 1080 × 1350 (4:5) is generally best — it fills the most vertical space in the feed, so your post gets more attention. Square 1080 × 1080 is the classic safe choice, and 1080 × 566 works for wide landscape shots.
How do I post a full photo on Instagram without cropping?
Use this tool's "no crop" mode: it fits your whole photo inside the chosen frame and fills the empty space with white padding. Instagram then accepts the image without trimming anything.
What size are Instagram stories and Reels?
Stories and Reels are 1080 × 1920 pixels (9:16 full-screen vertical). Keep text and key elements away from the very top and bottom, where usernames and interface buttons overlap.
Why do my Instagram photos look blurry after uploading?
Instagram re-compresses every upload and downscales anything wider than 1080 px. Uploading at exactly 1080 px wide — which this tool produces — minimizes recompression and keeps photos as sharp as possible.
Does Instagram still require square photos?
No. Squares haven't been required for years — feeds support 1.91:1 landscape through 4:5 portrait. Anything taller or wider than those limits is force-cropped, which is what this resizer helps you avoid.