CreatorBoostAI
CreatorBoost AI

All-in-one toolkit for creators. Process images, PDFs, and leverage AI — all in your browser.

Resize Image For Instagram

Built on the Image Resizer — free, private, no signup.

Open the Image Resizer →

Key specs

How to do it

  1. Open the Image Resizer and load your photo.
  2. Pick the "Instagram Post" preset (1080 × 1080) — or enter 1080 × 1350 for a portrait post.
  3. If the crop cuts off something important, adjust the crop offset before resizing.
  4. Download the PNG for graphics, or JPG at quality ~85% for photos.

Constraints to know

If something looks wrong

Questions

What size should an Instagram post be in 2026?

1080 × 1080 px for square or 1080 × 1350 px for portrait (4:5), which Meta prioritizes in feed. Stories use 1080 × 1920 px.

Does Instagram compress photos?

Yes — like every large platform, Instagram re-compresses uploads. Uploading at the recommended size in sRGB minimizes visible loss.

Is 1080 × 1350 the same as 4:5?

Yes: 1080 ÷ 1350 = 0.8, which is exactly the 4:5 ratio.

Related tools

More use cases →