Free Online Image Merger
Merge multiple images into one — combine photos side by side or stacked, directly in your browser with no uploads.
No Images Loaded – merge images online instantly
Add multiple images to merge them together
Supports: JPG, PNG, GIF, WebP- Click Add Images and select two or more JPG, PNG, GIF, or WebP files.
- Choose whether to merge horizontally (side by side) or merge vertically (stacked).
- Reorder the thumbnails to control the left-to-right or top-to-bottom order.
- Pick a background color or transparent background if your output format supports it.
- Preview the merged image, then click Save Image to download the final result.
Merging images into a single file is useful any time you want to show multiple photos together in a clean layout.
- Before and after photos: Place images side by side to show visual progress or edits.
- Comparison shots: Compare design variations, product photos, or screenshot versions.
- Simple collages: Create a quick collage for social media or presentations without using heavy design software.
- Documentation: Stack screenshots vertically for tutorials, bug reports, or walkthroughs.
The LeanTul image merger runs fully in your browser and supports common image formats used by phones, cameras, and design tools.
- JPG and JPEG photos
- PNG images, including transparency
- GIF images (first frame, if you are not preserving animation)
- WebP images from modern browsers and devices
You can choose a solid background color such as white or black, or use a transparent background when you plan to place the merged image on colored or patterned layouts. For more browser-based image tools, try the image resizer, image rotator, or image format converter.
Is this image merger really private?
Yes. All merging happens directly in your browser, and your images are never uploaded to a server. That keeps your photos and screenshots private.
Can I merge images side by side and stacked?
Yes. You can merge images horizontally to place them side by side or vertically to stack them on top of each other in one combined image.
Which image formats does this tool support?
The LeanTul image merger supports JPG, PNG, GIF, and WebP files. Most photos from phones, cameras, and design exports will work.
Can I control the background color?
Yes. You can pick a white, black, custom color, or transparent background before merging the images so the result fits your design.
Explore all of LeanTul's free tools on the tools directory.