πŸ–ΌοΈ Image Β· Updated October 15, 2026 Β· 7 min read

Photo Collage Online: Layouts, Spacing and Export

5 loose shots 1 tidy grid 🧩

To make a photo collage online, drop 2 to 9 pictures into the GrabCast Photo Collage Maker, click a layout, drag pictures between cells until the best one sits in the biggest spot, set spacing and corners, and download a JPG, PNG or WebP. Everything is drawn on a canvas inside your browser, so the files stay on your device. This walkthrough follows one real example, five garden flower shots turned into a square post, and explains each setting so you know what to change for your own set.

🧩 Try Photo Collage Maker now β€” freeOpen β†’
Finished five-flower collage: a large sunflower across the top and dahlia, zinnia, aster and daisy below with rounded corners, next to the Download collage button and a 1080Γ—1080 px Β· 5 photos note
The finished square collage, ready to download as a 1080 Γ— 1080 JPG.
πŸ’‘ Why a single grid beats five separate posts

A grid tells a small story in one image: the harvest, the trip, the before and after. Followers see all of it without swiping, a printed grid fits one frame instead of five, and a newsletter needs one attachment instead of a gallery. The catch is that a careless grid looks cluttered, with random crops and uneven gaps. A few deliberate choices, a lead image, consistent spacing and a canvas shape that matches where it will be shown, make the difference between a scrapbook page and something people stop to look at.

Pick a layout that suits the pictures, not the other way around

When you add pictures, the tool counts them and picks a grid with exactly that many cells, then sorts the layout thumbnails so options for the same count come first. There are more than 30 layouts for 2 to 9 images: plain rows and columns, a 2-over-3 split, one large cell beside a stack, one wide cell above a row of four, and 3 by 3 grids.

Switching layouts keeps your order and any zoom you already set, so trying five designs costs five clicks, not five rebuilds. A good test: squint at the preview. If your eye lands on the best picture first and nothing looks squeezed, the layout works; if a cell shows only sky or a sliver of a subject, try a layout with a different cell shape before touching zoom.

Arrange cells in the collage maker: swap, pan and zoom

Each picture fills its cell edge to edge, which means some of it is trimmed. Three controls decide what stays visible:

Your pan and zoom are stored as proportions rather than pixels, so the framing you see in the preview is exactly what appears in a 1080 pixel post or a 3000 pixel print. On a phone, tap a cell to select it and drag with one finger; the same controls appear below the preview.

Spacing, border, rounded corners and background

The style sliders are measured against a 1080 pixel canvas and scaled for every export size, so the look never changes when you pick a bigger file.

If you pick transparent and keep JPG, the tool warns you and fills the gaps with white, because JPG has no transparency.

Choose a canvas size and file format before you download

The Size menu sets the shape and the pixel count: Square 1080 x 1080, Portrait 4:5 at 1080 x 1350, Story 1080 x 1920, Landscape 1920 x 1080, a 1200 x 630 link preview, Pinterest 1000 x 1500, print sizes at 300 dpi, or a custom width and height from 100 to 8000 pixels. The preview changes shape immediately, so check your crops again after switching.

Each cell is drawn from the original file at the export size, so a large export stays sharp as long as your source pictures have enough pixels.

Shrink the finished image with the Compress Image tool, and add a caption with the Add Text to Image tool.

Step-by-step

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1Open the Photo Collage Maker and drop in 2 to 9 pictures at once, including iPhone HEIC files if you have them.
Collage maker after dropping five flower photos: a 2-over-3 grid of zinnia, dahlia, sunflower, aster and daisy with the layout row for five photos above it
Drop all five pictures at once; a five-cell grid is picked and matching layouts are listed first.
2Click a layout thumbnail; for one standout shot, choose a layout with one large cell and several small ones.
Layout switched to one wide photo on top with four small photos in a row underneath, the orange zinnia filling the top half
Click a layout thumbnail; here one wide cell sits above four smaller ones.
3Drag cells to swap them, drag inside a cell to reframe it, and use Zoom or Fit whole photo where needed.
The sunflower dragged up into the large top cell, swapping places with the zinnia, with the Photo 1 panel showing the Zoom slider, Fit whole photo, Replace and Remove
Drag a small picture onto the big cell to swap them; the selected cell gets its own zoom and fit controls.
4Set Size, spacing, border, corners and background, pick JPG, PNG or WebP, and click Download collage.
Square 1080 by 1080 flower collage with spacing 8, no outer border, corner radius 16 on a white background, and the Size menu set to Square 1:1
Tighten spacing, round the corners and keep Square 1:1 for an Instagram post.

Common mistakes to avoid

⚠️Choosing the layout first and then forcing tall pictures into short, wide cells, which crops heads, tops and feet.
⚠️Mixing heavy spacing with a busy background color, so the gaps compete with the pictures.
⚠️Picking transparent gaps but saving a JPG, then wondering why the background came out white.
⚠️Changing Size at the very end without looking again, when the new shape may have shifted every crop.

Pro tips

βœ“Put the sharpest, most colorful shot in the largest cell; viewers look there first.
βœ“Keep spacing and outer border at similar values for a balanced frame, or set the border to 0 for an edge-to-edge post.
βœ“Use Shuffle to see random arrangements quickly, then fine-tune the one that works.
βœ“Name the downloaded file after the event; the tool saves it as collage plus the pixel size.
βœ“For a carousel, make each slide with the same size and style so the set looks consistent, and keep the lead picture of each slide in the same position.

Frequently asked questions

How many pictures can one collage hold?

Each layout has 2 to 9 cells. You can add more files, but only the ones placed in cells appear; swap or replace to choose which.

Is there a watermark or sign-up?

No. The tool is free, needs no account and adds nothing to your image.

Are my pictures uploaded?

No. The grid is drawn on a canvas in your browser and saved straight to your device. Only iPhone HEIC files need a small converter library, which downloads the first time you add one.

Which size should I use for an Instagram post?

Square 1080 x 1080 or Portrait 4:5 at 1080 x 1350. Portrait takes more screen height in the feed, square is safest for profile grids.

Can I make a collage on my phone?

Yes. The page works in mobile browsers; tap a cell to select it and drag with one finger to reposition or swap.

πŸ“Œ Bottom line

Add the pictures, choose a layout that matches their shape, put the best one in the biggest cell, and keep spacing and corners modest. Check the preview once more after picking the final size, then download a JPG for sharing or a PNG when you need transparent gaps.

Open Photo Collage Maker β†’

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