Resize Image for Instagram — Free Online Tool

Get the perfect crop and size for every Instagram format, without guessing.

Instagram is picky about image dimensions. Post a photo that's too wide and it gets cropped. Too small and it looks blurry. The safe dimensions are 1080 px wide — but the height depends on the format.

EasyFileKit's Image Resizer lets you set exact pixel dimensions with a live preview. Your files are processed entirely in your browser — never uploaded to a server. No watermarks, no quality loss, no account needed.

How to do it

  1. 1Open the Image Resizer below and upload your photo.
  2. 2Enter the target dimensions (see the cheat sheet below).
  3. 3Preview the result and download when you're happy.

Pro Tips

  • Square post: 1080 × 1080 px (1:1 ratio).
  • Portrait post: 1080 × 1350 px (4:5 ratio) — takes up more screen space and gets more engagement.
  • Landscape post: 1080 × 608 px (1.91:1 ratio).
  • Story / Reel cover: 1080 × 1920 px (9:16 ratio).
  • Instagram compresses images further, so start with the highest quality you can.

Tools you'll need

Frequently Asked Questions

What is the best image size for Instagram posts?

1080 × 1080 pixels for square posts, or 1080 × 1350 pixels for portrait posts. Portrait posts take up more screen space and typically get higher engagement.

Why do my Instagram photos look blurry?

If your image is smaller than 1080 px wide, Instagram upscales it, which causes blurriness. Always upload at least 1080 px wide.

Can I resize a landscape photo to portrait?

Yes, but you'll need to crop it. Use the Image Crop tool to select the 4:5 area you want to keep, then resize to 1080×1350.

No upload. No account. No limits.

Every EasyFileKit tool runs in your browser — free and private. Find the one you need.