Merge Images Online - Horizontal, Vertical and Grid Collage | EXUtil

Merge multiple images horizontally, vertically, or into a grid. Reorder files, adjust spacing and background, then export PNG, JPEG, or WebP locally in your browser.

How to use

  1. Paste or import the content you want to process.
  2. Choose an available action and run the tool.
  3. Review the result, then copy or download the output.

Frequently asked questions

Can I change the image order?
Yes. Drag thumbnails into position or use the left and right arrow buttons.
How are images with different dimensions aligned?
Horizontal and vertical layouts keep each image's aspect ratio and center smaller images. Grid layout centers every image in an equal-size cell.
Can the merged image have a transparent background?
Yes for PNG and WebP. JPEG always fills empty areas with the selected background color.
Why is the output size limited?
Very large canvases can exhaust browser memory. The limit prevents crashes while still allowing large long images and collages.
Are my images uploaded?
No. Reading, previewing, merging, and encoding all happen locally in your browser.