To put two pictures side by side, upload both to a side-by-side photo tool, select the row layout, and download. The two photos land in one image with equal width, matched height, and a gap you control.
Step-by-step: side by side on any device
- Upload your two pictures in the order you want them to appear, left then right.
- Choose the row (side-by-side) layout instead of grid or column.
- Set the gap size if you want visible space between the two pictures.
- Pick a background color for that gap, or leave it transparent.
- Download the finished image as PNG or JPG.
Why photos come out mismatched (and how to fix it)
The most common problem with side-by-side photos is mismatched heights: one photo ends up stretched, the other looks small. A good side-by-side tool matches both photos to the same height automatically without distorting either one, which is the setting to look for if your results look uneven.
| Symptom | Cause | Fix |
|---|---|---|
| One photo looks stretched | Tool is force-fitting different aspect ratios | Use a fit mode that crops instead of stretches |
| Big gap on one side | Photos aren't the same height before merging | Match height first, then merge |
| Photos touch with no separation | Gap set to zero | Add a small gap (10-20px) and a background color |
Side by side on iPhone specifically
On iPhone, open the tool in Safari, upload from your camera roll, and the same row layout applies. This gets you a cleaner result than the Photos app's built-in collage feature, which offers far fewer layout controls.
Frequently asked questions
- What's the easiest way to put two pictures side by side?
- Upload both photos to a free online merge tool, pick the row layout, and download. No app install is required.
- Can I control the space between the two pictures?
- Yes, most side-by-side tools let you set a gap size in pixels and choose its background color.
- Does putting pictures side by side work the same on Android?
- Yes, the same browser tool and steps work identically on Android, iPhone, and desktop.