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Resize image for Instagram

Post the whole photo: portrait, square, story or the new 3:4 size, with no cropping.

Preset

Drop images here, or paste with Ctrl+V

JPG, PNG, WebP, GIF or HEIC. Several at once is fine.

Settings size, KB limit, format, DPI
1 to 100, empty = automatic

    Your images are processed on this device and never uploaded.

    Crop image

    Drag the box to move it and the corners to resize. With the box focused, arrow keys move it and Shift+arrow keys resize it.

    Example with a real photo

    We ran this tool on the photo below. These are the real results.

    Original3024 × 4536 px · 1.54 MB · JPG
    Result1080 × 1350 px · 138.6 KB · JPGThis is the actual file the tool made.

    Photo: Unsplash

    What this page does
    Portrait post1080 × 1350 px (4:5)
    Square post1080 × 1080 px (1:1)
    Story and Reel1080 × 1920 px (9:16)
    Profile grid preview3:4

    Platform sizes change from time to time. These are the commonly recommended sizes as of November 2026; check the platform's help centre if an upload is rejected.

    How to use it

    1. Pick the preset that matches where the image goes.
    2. Drop your image and check the preview.
    3. Download and upload it.

    Getting the Instagram size right

    Instagram only accepts feed photos between 4:5 portrait and 1.91:1 landscape. A tall phone photo (3:4 or 9:16) gets cropped when you post it, often cutting off heads or feet.

    Choosing a preset here places the entire photo in the right frame and fills the space around it with a soft blur of the same photo, so nothing is lost and the post still looks full.

    Tip

    The profile grid now shows posts as 3:4 previews. Keep faces and text in the middle of a 4:5 post so the grid crop does not cut them.

    Questions

    Which size gets the most space in the feed?

    The 4:5 portrait size, 1080 × 1350 px. It fills more of the phone screen than a square or landscape post.

    Can I use a white border instead of blur?

    Yes. Open Settings and change Border to White or Black.

    Is my photo uploaded to a server?

    No. The resizing runs inside your browser with JavaScript, so the image never leaves your device. Once the page has loaded, resizing keeps working even if you go offline.