Editing Tools3 min read

How to Merge Images Side by Side or Top-to-Bottom

Merge two images horizontally or vertically into one. Free online image merger.

mergestitchcombineside by side

Sometimes you need to stitch two images together — before-and-after comparisons, side-by-side screenshots, or a simple panorama.

How It Works

Upload two images and choose a direction:

Horizontal (Side by Side)

Image 1 on left, Image 2 on right. The taller image determines total height.

Vertical (Top to Bottom)

Image 1 on top, Image 2 on bottom. The wider image determines total width.

Common Use Cases

Before and After

The most popular use. Original on left, edited version on right. Great for photo editing showcases, design iterations, and progress photos.

Combining Screenshots

Stitch app screenshots for documentation, bug reports, and app store previews.

Simple Panoramas

Merge overlapping landscape photos for a wider view.

For best results, resize both images to the same height (horizontal) or width (vertical) before merging.

Tips

  • Resize to match — Mismatched dimensions look awkward
  • Order matters — Image 1 is always on left (horizontal) or top (vertical)
  • Add dividers — Add a border to one edge of each image before merging for a visible separator

Merge your images now — free and instant.

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