Merge Images Side by Side
Place two or more photos in a neat horizontal row — even spacing, optional border, your choice of background. Free and in your browser.
コラージュ用の写真をドロップ
ドラッグ＆ドロップ、貼り付け、またはファイル選択 — 何枚でも追加可
PNG · JPG · WebP · GIF · BMP — お使いのデバイスで作成
Why merge side by side?
Putting images in a horizontal row is the classic way to show a comparison — before and after, two options next to each other, or a panorama of related shots. A side-by-side merge keeps every photo the same height and lines them up left to right, so the eye reads them as a set.
You control the gap between the photos, whether each has a border or rounded corners, and the background that shows in the gaps and around the edge. Export as JPG for a small file, or PNG/WebP if you want the background to stay transparent.
How to merge images side by side
- Add your photos. Drop two or more images onto the tool, paste, or pick files.
- Choose side by side. Select the side-by-side layout to line them up in a single row.
- Set the spacing. Adjust the gap, border, corners, and background colour.
- Download. Pick a format and size, then save the merged image.
Match the heights
Side-by-side works best when the photos are a similar shape. Set the fill mode to Fill so each photo crops to the same height for a clean, even row — or use Fit if you'd rather keep every photo fully visible.
横並びの行: セルの並べ方
すべての写真が同じ高さで1つの横一列に置かれ、左から右へ均等に広がります（エンジンは列数を写真の枚数に設定し、1行を使います）。目は別々の写真ではなく、つながった1組として読み取ります。
このレイアウトが向いていること
- 左から右へ示すビフォー・アフターや、どちらか比較
- 関連する選択肢や、同じ被写体の角度を2点・3点で並べたもの
- 横方向にまとまるショットの、シンプルなパノラマ
実用的なヒント
横並びは写真の形が似ているときに最もすっきり見えます。塗りつぶしモードを「塗りつぶし」にすると各写真が同じ高さに切り抜かれて整った行になり、すべての写真を丸ごと残したいときは「フィット」を使います。
More ways to make a collage
よくある質問
How many images can I merge side by side?
Two or more — there's no limit. They're spread evenly across a single horizontal row at the same height.
Can I add a gap between the photos?
Yes. The gap slider sets the spacing between images, and you can add an outer frame and a border around each photo too.
What's the best format for a comparison?
JPG keeps the file small and is fine for photos. Choose PNG if you need a transparent background or crisp edges on graphics.
Where is my image processed?
Your collage is created in your browser, so the new file is made on your own device. How any data associated with the tool is handled is described in our privacy policy.
他の画像ツール
Crop an image
Crop to any ratio or an exact pixel size.
Image toolResize an image
Change dimensions to exact pixels or presets.
Image toolCompress an image
Shrink file size without visible quality loss.
Image toolRotate an image
Rotate 90°, flip, or straighten a tilted photo.
Image toolConvert image format
PNG, JPG and WebP — convert any to any.