Merge Images
🔒ブラウザ内処理
Combine multiple images into one — vertically, horizontally, or as a grid. Files are never sent to any server.
ファイルをドラッグ&ドロップ
またはクリックしてファイルを選択
Supported: JPG, PNG, WebP / 2–20 files / Max 50MB per file
よくある質問
What if my images are different sizes?
Vertical merging matches the widest, horizontal matches the tallest. Grid centers each image inside its cell.
What is the background color used for?
It fills gaps between images, the unused area in non-matching grid cells, and replaces transparency when output is JPG.
What if the result is huge?
Outputs above 16,384px hit browser memory limits. Reduce file count or gap.
Can I create a screenshot-style stack?
Yes — choose "Vertical" to stack images into one tall image.
How many images at once?
Up to 20 files. Total output dimension cap is 16,384px.
Can I keep transparency?
Yes — choose PNG output to preserve alpha.