Image Merger
Combine multiple images into one — horizontally or vertically, with optional gaps. Save as PNG or JPEG. Everything runs locally in your browser.
Drop images to combine (2-10)
Click or drag & drop (PNG / JPG / WebP / GIF)
How to use
- 1
Add images
Drop 2 to 10 images you want to combine.
- 2
Set direction and gap
Choose horizontal or vertical layout and the gap width.
- 3
Merge and save
Preview the merged result and download it as PNG or JPEG.
Features
- Combine 2 to 10 images horizontally or vertically
- Adjustable gap from 0 to 100 px
- Save as PNG (transparency supported) or JPEG
- All processing in your browser; images are never uploaded
Use cases
Concatenate screenshots
Join multiple scrolling screenshots into one shareable image.
Before / after comparisons
Place edited and original versions side by side.
Step-by-step guides
Stack procedure captures vertically into a single instruction image.
Details
Image merging joins multiple images into one. Typical uses include concatenating screenshots, tidying up scrolling captures, and building side-by-side comparisons. This tool supports horizontal and vertical layouts with an adjustable gap.
For a horizontal layout the canvas is the sum of widths by the tallest height; for vertical, the widest width by the total height. Images keep their original sizes and are not scaled. Combining many very large images can exceed device memory. Output is PNG (transparency supported) or JPEG (white background).
All processing happens locally in your browser and images are never uploaded. The order you add images is the merge order — remove and re-add to change it.
FAQ
How many images can I merge?
Between 2 and 10. They are placed in the order you added them.
Can I merge images of different sizes?
Yes. Each image keeps its original size; only the gap is added. Horizontal layout aligns tops, vertical layout aligns left edges.
What happens to transparency in JPEG?
JPEG cannot store transparency, so transparent areas are filled with white. Choose PNG to keep transparency.
Are my images uploaded anywhere?
No. Merging happens entirely in your browser and images are never uploaded.
Related guide
GuideImage Cropping Guide: Ratios and Sizes Explained
Learn how to crop images in your browser: choose between 1:1, 16:9 and other ratios, find size guidelines for social media and forms, and keep quality intact.
GuideHow to Combine Images: Merge Photos Side by Side or Stacked for Free
How to combine multiple images into one: horizontal and vertical layouts, adjustable gaps, PNG and JPEG output, tips for stitching screenshots and building before/after comparisons — with a free browser tool that needs no upload.
Related Tools
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Image Resizer
Resize images by pixels, percentage or longest side. Keep the aspect ratio and get the perfect size for websites, social media or document attachments.
Image Compressor
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Image Converter
Convert between PNG, JPG, WebP and GIF. Preserve transparency or optimize to WebP.
All processing happens in your browser. Your files are never uploaded.
Verified: Horizontal and vertical merging, gaps and output formats are covered by browser tests
Did you know?
Long scrolling screenshots can be built manually: capture sections, save them in order, and stitch them together into one tall image.