Merging photos is useful in more places than a simple collage. A before-and-after comparison, a product shown from two angles, a screenshot with its caption, or a set of photos that belong together all read better as one image than as separate files that a reader has to open one by one. With a free merge tool, you can put them together in your browser without installing an editor.
Plan the layout before you merge
The most common mistake is merging photos of very different sizes and expecting them to line up. Decide first whether the photos should sit side by side or stacked vertically, and crop or resize them to a matching width or height before you combine them. That single step is what separates a tidy result from a lopsided one.
Step by step
- Open the Merge Images tool and upload your photos in the order you want them to appear.
- Choose a horizontal or vertical layout, and adjust the order if a photo is in the wrong place.
- Download the combined image. Check it at full size before you post it, because small misalignments are easy to miss in a preview.
Layouts that work
- Before and after: two photos side by side, same size, same subject position.
- Product shots: one main photo with smaller detail shots stacked beside it.
- Screenshots: stacked vertically, in reading order, so the steps flow top to bottom.
Keep the original photos. Once images are merged and downloaded, separating them again is extra work. Save the combined version as a new file and leave your originals untouched.
Everything runs in your browser, so your photos are never uploaded to a server. That matters for personal photos and for work images you should not hand to a stranger's website.