4 Photo Collage Online — Square 2×2 Grid
Assemble four pictures into a square 2×2 collage — perfect for Instagram, daily moments, or comparisons. Free, no signup.
Drop photos here or click to choose
Drag and drop your file here or click to select
How to make a 2×2 collage of 4 photos
1. Upload 4 photos
Drag four pictures or pick them manually. The four images automatically fall into a 2×2 grid in the order you uploaded them.
2. Tune the grid
The “4 photos · square” template is already selected. Switch to “1 + 3” for one big photo plus three small ones. Tweak gaps, background colour, and corner radius.
3. Download PNG
Click “Download PNG” — the square collage saves in high resolution. A 1:1 aspect ratio is perfect for the Instagram feed and avatar.
Why use Convertilo for a 4 photo collage
All 4 photos stay on your device
No server upload. All four photos are assembled in the browser through HTML Canvas — safe for personal photos and screenshots.
No subscriptions or watermarks
Make as many 4-photo collages as you need for free. There is no Convertilo logo on the final PNG, and no ads on top of the image.
2×2 looks great on phones
The 2×2 layout reads equally well on desktop and mobile. Build a 4 photo collage in Safari on iPhone or Chrome on Android.
2 templates for 4 photos
Classic 2×2 (square grid) or accent 1+3 (one big photo plus three smaller ones) — pick whichever fits your story.
FAQ about 4 photo collages
How do I make a 2×2 collage of 4 photos online?
Open this page, drag four pictures into the upload area — they automatically fall into a 2×2 grid. Adjust the gap (0–40 px) and click Download PNG.
What aspect ratio should I pick for a 2×2 collage?
For the Instagram feed — 1:1 (square, the default). For Stories — 9:16. For an avatar — 1:1 again. If you plan to print on A4, pick the A4 aspect ratio.
Can I make a 1 big + 3 small collage from 4 photos?
Yes. After uploading four photos, choose the “1 + 3” template in the gallery on the right — the first photo will fill the top row, the other three will form a strip below.
Are my 4 photos uploaded to a server?
No — none of the four photos leave your device. Convertilo uses HTML Canvas and createImageBitmap, which run entirely in the browser. The pictures physically stay on your device.