See your grid before you post

An Instagram grid preview shows how a set of pictures will sit together on a profile before any of them goes live, and this free one lines up images from your device three to a row so you can reorder, remove and compare them. Nothing is uploaded, and the page lets go of your pictures when you leave.

What shape are the tiles on an Instagram profile grid?

Instagram's own pages give no current answer. On 23 October 2026 we searched Instagram's Help Center for grid, profile grid, grid preview, aspect ratio grid and rearrange posts, and no result described the shape of a profile tile.

The only grid shape we found on an Instagram page is a square, in an announcement dated 27 August 2015 that says a portrait or landscape post appears on the grid as "a center-cropped square". That is more than ten years old, so we do not treat it as today's rule.

The tool offers both shapes. Neither is documented today. The square has only that 2015 announcement behind it, and the 3:4 shape has no Instagram page behind it at all: we chose it because 3:4 is the tallest photo shape Instagram's Help Center lists. Open your own profile on your phone, compare a tile's height with its width, and keep the option that matches.

Does this work as an Instagram post preview?

It previews your pictures inside a profile grid, not the post itself. You see the order, how each picture is cut to a tile and which pictures sit outside the 1.91:1 to 3:4 shape Instagram lists for photos.

It does not show your caption, your hashtags, the post in someone's feed or the way Instagram itself crops a tile. For sizes and shapes, the page on Instagram post size lists every figure Instagram publishes.

How can I test an Instagram post before posting it?

Check the picture here beside your latest posts, save the post as a draft in the app, and look at it on your phone once more before you share it.

Start with the grid. Put the picture you plan to post next in the first tile, which is the top left, and your latest posts after it. Look for a colour that clashes, a crop that cuts off a face and a picture that breaks the rhythm of its row.

Then use the app. Instagram's Help Center has an article on saving a post as a draft in the app (read 23 October 2026). Instagram also lets you pin up to three posts to the top of your profile grid (same date), so put any pinned posts first in the preview. The post on feed planners covers drafts, scheduling and pinning in full, and Instagram aesthetic covers the look itself.

What does "outside 1.91:1 to 3:4" mean on a picture?

It marks a picture that Instagram would crop as a photo. Instagram's Help Center says it keeps a photo at its original resolution when the width is 320 to 1,080 pixels and the shape is between 1.91:1 and 3:4, and that a photo outside those shapes is cropped to fit a supported one (read 23 October 2026). A 9:16 story frame is a common case.

Reels follow a different rule. Instagram accepts shapes from 1.91:1 to 9:16 for a reel and recommends a cover of 420 by 654 pixels, a ratio of 1:1.55. It does not say how a cover is cropped for the grid, so ignore the label for reel covers. The reels safe zone checker shows where text sits in a tall frame.

Where this stops working

• The tile shape is unconfirmed. Instagram's Help Center gives none, and the one grid shape on an Instagram page is a square from 2015.
• The crop is ours. The preview cuts the middle out of each picture. We found no Instagram page that says how it chooses a crop, so keep faces and words near the centre.
• It shows pictures only. There are no captions, carousel or reel icons, pinned posts or highlights.
• It cannot reorder your real profile. We found no Help Center article on reordering posts after you share them, and pinning up to three is the one control Instagram describes.
• Your browser must open the file. Some formats, such as HEIC, do not open in every browser. Export a JPG or PNG and try again.
• Nothing is saved. Close the tab and the grid is gone, so save a PNG of it first if you need one.
• It holds 30 pictures. Choose fewer if your browser slows down.

A grid you are happy with is a good moment to ask for something. When a post asks people to comment a keyword, a comment-to-DM automation from inDM sends each commenter your link, and the setup guide shows how in a few minutes.

To cut one picture into numbered pieces that post as a grid, use the free grid splitter.