How to Resize an Image for Instagram (Free, Right Sizes)
Post a photo that's the wrong size and Instagram crops it awkwardly or squishes it. Resizing to Instagram's recommended dimensions first keeps your images sharp and framed the way you intended. This guide shows how to resize an image for Instagram — posts, stories, reels and profile pictures — for free.
📸 Try the Resize Image now — freeOpen →Matching Instagram's expected dimensions prevents automatic cropping, keeps quality high, and makes your feed look intentional and professional. The right size in, the right look out.
Instagram's key sizes
- Square post: 1080 × 1080 (1:1).
- Portrait post: 1080 × 1350 (4:5) — takes up the most feed space.
- Landscape post: 1080 × 566 (1.91:1).
- Stories & Reels: 1080 × 1920 (9:16, vertical full screen).
- Profile picture: 320 × 320 (displayed as a circle).
Resize without distortion
Enter the target dimensions and keep the aspect ratio in mind — if your photo's shape doesn't match the target, you may need to crop first so nothing important gets cut. For portrait posts (4:5), which fill the most feed space, resize to 1080 × 1350.
Always start from a high-resolution photo and resize down, not up, so the result stays crisp on high-density phone screens.
Step-by-step
Common mistakes to avoid
Pro tips
Frequently asked questions
What size should an Instagram post be?
1080 × 1080 for square, or 1080 × 1350 for portrait (4:5), which takes up the most feed space.
What size are stories and reels?
1080 × 1920 pixels (9:16), full-screen vertical.
How do I avoid cropping?
Resize (and crop if needed) to Instagram's exact dimensions before uploading, so it doesn't re-crop your image.
Is it free and private?
Yes — free with no sign-up, and resizing runs in your browser.
Will resizing lower quality?
Resizing down from a high-res photo keeps it sharp; avoid enlarging small images.
Resizing for Instagram to the right dimensions — 1080×1350 posts, 1080×1920 stories, 1080×1080 squares — keeps your images crisp and uncropped. Crop first if the shape doesn't match, resize down from a high-res original, and your feed looks intentional. Free and private.