How to Merge Multiple Images Into One File

Whether you're combining product photos for a marketplace listing, stitching scanned document pages, or creating a before-and-after comparison, merging images into a single file is a common task. Here's how to do it instantly in your browser — with zero software installation and complete privacy.

Why Merge Images?

There are many practical reasons to combine multiple images into one:

• E-commerce listings — Marketplaces like Amazon and eBay often benefit from multi-angle product shots in a single image.
• Document scanning — Combine multiple scanned pages into one continuous image for easy sharing or archiving.
• Before/after comparisons — Place two images side by side for portfolios, case studies, or social media content.
• Photo collages — Create simple collages without needing Photoshop or Canva.
• Assignment submissions — Students often need to merge handwritten pages into a single file for upload.

Vertical vs. Horizontal Merge

The two most common merge layouts are:

• Vertical (top to bottom) — Best for stacking screenshots, chat logs, receipts, or document pages. The result is a tall image you can scroll through.
• Horizontal (side by side) — Best for comparisons, panoramic-style compositions, or gallery strips. The result is a wide image.

Choose the layout that best matches how your content should be read or viewed.

Step-by-Step: Merge Images

1. Open the tool — Go to our Merge Images tool.
2. Upload your images — Click or drag-and-drop multiple image files. JPG, PNG, and WebP are all supported.
3. Arrange the order — Drag the image thumbnails to reorder them. The first image appears at the top (vertical) or left (horizontal).
4. Choose layout — Select Vertical or Horizontal merge.
5. Select output format — Choose JPG for smallest file size, PNG for lossless quality, or WebP for the best balance.
6. Merge and download — Click "Merge Images" and download your combined file.

Output Format Tips

Format	Best For	File Size
JPG	Photos, web sharing	Smallest
PNG	Screenshots, text-heavy images	Largest
WebP	All-purpose web use	25-35% smaller than JPG

Common Use Cases by Audience

• Freelancers & consultants — Merge invoices, receipts, or project screenshots into a single reference image.
• Real estate agents — Combine property photos into a single gallery image for listings.
• Teachers & students — Merge assignment pages, whiteboard photos, or study notes.
• Social media managers — Create multi-image posts from separate photos without design software.

Privacy & Security

Our merge tool processes everything locally in your browser using the HTML5 Canvas API. No images are uploaded to any server. This makes it safe for merging confidential documents, personal photos, medical records, or any sensitive content. The tool works fully offline once loaded.

Ready to combine your images? Try our free Merge Images tool — fast, private, and no signup required.