Merge Images Online

Combine multiple images side by side, vertically, or in a grid. Drag to reorder.

Runs in your browser — images never leave your device
Drop images here or click to upload
Select 2 or more images · JPG, PNG, WebP · No size limit
Layout:
Gap: px BG: Cols:
Upload images to get started
Images: 0
Output: —

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How It Works

1

Upload Images

Select 2 or more images. Drag and drop or click to browse. Any format works.

2

Choose Layout

Arrange horizontally, vertically, or in a grid. Drag thumbnails to reorder. Adjust spacing and background.

3

Download

Download your combined image as a high-quality PNG or JPG file.

How to Merge Images Online

Combining multiple images into a single file is one of the most common image editing tasks — and you don't need Photoshop to do it.

Image merging (also called image combining, stitching, or concatenation) is the process of placing two or more images together in a single canvas to create one unified image file. The most common arrangements are horizontal (side by side), vertical (stacked top to bottom), and grid (rows and columns). Each layout serves different purposes depending on the intended use.

Traditionally, combining images required opening multiple files in Photoshop, manually creating a canvas large enough for all images, positioning each one precisely, and exporting the result. This process is tedious, time-consuming, and requires design software skills. Modern browser-based tools like this one automate the entire process — upload your images, pick a layout, and download the combined result in seconds.

Horizontal vs Vertical vs Grid

Horizontal merging places images side by side from left to right. This is ideal for before-and-after comparisons, panoramic sequences, multi-panel social media posts, and any content where you want viewers to scan from left to right.

Vertical merging stacks images from top to bottom. This works well for long-form content like infographics, step-by-step tutorials, mobile-optimized content, and Pinterest pins where vertical scrolling is the natural viewing pattern.

Grid merging arranges images in rows and columns. Grids are perfect for photo collages, product comparison layouts, mood boards, and social media carousel previews where you want to show many images in a compact, organized format.

Image Merging Use Cases

From social media posts to product comparisons, combining images is essential for visual communication.

Before & After Comparisons

Place original and edited images side by side to show the difference. Popular for photo editing results, home renovations, fitness transformations, product makeovers, and skin care results. Horizontal layout with zero gap creates a clean split comparison.

Social Media Collages

Combine multiple photos into a single post for Instagram, Facebook, or Twitter. Grid layouts work great for trip recaps, event highlights, and product showcases. Many social platforms display single images more prominently than multi-image posts.

Product Comparisons

Place competing products or product variations side by side for comparison posts, review articles, and buying guides. Add spacing and a white background for a clean, professional layout that's easy to read.

Step-by-Step Tutorials

Stack instruction images vertically to create visual guides and how-to content. Each image represents a step, and the vertical layout matches the natural reading/scrolling flow for tutorial content.

E-commerce Listings

Combine multiple product angles into a single image for marketplace listings. Show front, side, back, and detail views in one image to maximize visual information in platforms with limited image slots.

Mood Boards & Inspiration

Create visual mood boards by combining reference images, color palettes, textures, and typography samples in a grid layout. Essential for design projects, brand development, and creative briefs.

Image Merger Features

3 Layout Modes

Horizontal, vertical, and grid arrangements with adjustable column count.

Drag to Reorder

Drag and drop thumbnails to change image order instantly.

Adjustable Spacing

Set gap between images from 0px to 100px for the perfect layout.

Background Color

Choose any background color for the gaps between images.

100% Private

Everything runs in your browser. No images uploaded to any server.

Unlimited & Free

No limits, no sign-up, no watermarks. Merge as many images as you need.

Frequently Asked Questions

Are my images uploaded to a server?
No. Everything runs in your browser using the HTML5 Canvas API. Your images never leave your device.
How many images can I combine?
There's no hard limit. You can combine as many images as you want. For very large numbers of images or very high-resolution images, performance depends on your device's memory.
Are the images resized?
Images are scaled to match heights (horizontal layout), widths (vertical layout), or cell size (grid layout) while maintaining their original aspect ratios. This ensures a clean, uniform result. The output resolution depends on the input images.
Can I reorder the images?
Yes, drag and drop the image thumbnails to change their order. The preview updates in real-time as you reorder.
What output formats are available?
You can download the merged image as PNG (lossless, best quality, supports transparency) or JPG (smaller file size, no transparency). Choose PNG for maximum quality and JPG when file size matters.
Can I add spacing between images?
Yes, use the gap control to add 0-100px of spacing between images. The background color fills the gaps. Set gap to 0 for seamless edge-to-edge merging.
Does it work with different sized images?
Yes. Images of different sizes and aspect ratios are automatically scaled to fit together neatly. In horizontal mode, all images are scaled to the same height. In vertical mode, all images are scaled to the same width. In grid mode, images fit within uniform cells.
Is there a file size limit?
No enforced limit. The tool handles any image size your browser can process. Very large images may take a moment to render.
Does it work on mobile?
Yes, fully responsive. Works on iPhone, Android, iPad, and any device with a modern browser. Touch drag-and-drop is supported for reordering.
Can I combine images with transparent backgrounds?
Yes. PNG images with transparency are fully supported. Download as PNG to preserve transparency in the merged result.
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