Image Merge - Combine images horizontally, vertically or in a grid

Add images to merge

Supports JPG, PNG, WebP

Learn About Image Merger

Everything you need to know

How to Use Image Merge+

Add Your Images

Drop multiple images into the upload zone or click to browse. You can add as many photos as you want — JPG, PNG, and WebP supported.

Choose Layout & Style

Pick horizontal, vertical, or grid mode. Adjust spacing between images, set spacing color, and choose alignment. Reorder images by removing and re-adding.

Download Combined Image

Preview your merged image on the canvas. If everything looks good, download the result instantly as a high-quality PNG file.

Key Features+

Three Layout Modes

Choose horizontal side-by-side, vertical stacking, or grid layout. Grid mode lets you set custom column count from 1 to 10.

Custom Spacing

Adjust the gap between images from 0 to 50 pixels. Choose any background color for the spacing area — white, black, or any hex color.

Smart Alignment

Images with different sizes? Align them top, center, or bottom in horizontal mode, and left, center, or right in vertical mode.

Batch Upload

Upload dozens of images at once by selecting multiple files or dragging a whole folder. All images are processed locally in your browser.

Instant Preview

See your merged image update in real time as you change layout, spacing, or alignment. No waiting for server-side rendering.

Private & Secure

All merging happens directly in your browser using Canvas API. Your images are never uploaded to any server — complete privacy guaranteed.

Common Use Cases+

Before & After Comparisons

Create side-by-side comparison images for fitness transformations, makeup looks, home renovations, or product before/after shots.

Photo Collages

Make beautiful grid collages for family photos, vacation memories, or event highlights. Perfect for social media carousels and prints.

Meme & Screenshot Stacks

Stack multiple screenshots vertically for chat history, instructions, or meme compilations. Great for Twitter threads and Reddit posts.

Product Gallery Grids

Create multi-product showcase images for e-commerce listings, email newsletters, or landing pages. Consistent grid layouts look professional.

Document & PDF Pages

Combine multiple scanned document pages or screenshot captures into one long vertical image for easy sharing and archiving.

Social Media Carousels

Create panoramic or multi-panel images for Instagram carousels, Facebook albums, or LinkedIn posts. Split or merge to fit platform specs.

What is Image Merging?+

Understanding Image Merging

Image merging (also called image stitching or photo joining) is the process of combining two or more separate image files into a single composite image. Unlike photo editing where you layer elements onto a base image, merging typically arranges images in a structured layout — side by side, stacked vertically, or in a grid pattern. The result is one cohesive image file that displays multiple photos in an organized way, making it perfect for comparisons, collages, and galleries.

Horizontal vs. Vertical vs. Grid — Which to Use?

Horizontal merging (side by side) is ideal for before-and-after comparisons, product feature comparisons, and any situation where viewers need to scan left to right. It works best when images have similar heights. Use center alignment for photos with different aspect ratios. Vertical merging (top to bottom) is great for screenshot stacks, chat histories, step-by-step tutorials, and long-form infographics. It's the most mobile-friendly format since phone screens are naturally portrait-oriented.

Grid layout is perfect for photo collages, product galleries, and showcasing collections. With grid mode, you can set the number of columns (from 1 to 10) and the tool automatically arranges your images into rows. This is the most flexible option for displaying many images in a compact space. Popular grid configurations include 2x2 for four images, 3x3 for nine, and 4-column grids for product catalogs.

Pro Tips for Professional-Looking Merges

For the most polished results, start by resizing your images to consistent dimensions before merging — our Resize tool works great for this. Use white spacing (10-20px) for a clean, gallery-like look, or zero spacing for a seamless panoramic effect. When merging photos of different sizes, use the alignment controls to create visual balance. For social media, horizontal 2-up images work well for Instagram (1080x1080 square), while vertical stacks perform best on mobile feeds. Always consider where your image will be displayed and choose the layout that fits that platform's aspect ratio best.

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Frequently Asked Questions

Everything about image merger

How many images can I merge at once?+

There's no hard limit. Since all processing happens in your browser, the practical limit depends on your device's memory and processing power. Most modern computers can easily handle 20-50 images at a time, especially in grid mode. For very large batches, consider merging in smaller groups and then combining the results.

Can I rearrange the order of images?+

Currently, images appear in the order you upload them. You can remove individual images using the × button on each thumbnail. To reorder, simply upload images in the order you want them to appear. We're working on drag-and-drop reordering for a future update.

What happens to images of different sizes?+

The tool handles different-sized images intelligently. In horizontal mode, the total height equals the tallest image, and you can align shorter images to the top, center, or bottom. In vertical mode, the total width equals the widest image, with left/center/right alignment. In grid mode, each cell is sized to the largest image dimensions for a clean, uniform grid.

Can I add a border or frame around the merged image?+

You can create a border effect by adding spacing and setting the spacing color to your desired border color. The spacing acts as both the gap between images and a frame. For a more custom border, you can add a solid color background using the spacing color option.

What format does the output image use?+

Merged images are downloaded as PNG files to preserve full quality and support transparency if any of your source images have transparent backgrounds. If you need a smaller file size, use our Compress tool afterward to convert to JPG or WebP with your preferred quality level.

Can I merge images on my phone?+

Absolutely! The merge tool works fully on mobile browsers. Upload images directly from your camera roll or photo gallery. Pinch to zoom on the preview to check details. Touch-friendly controls make it easy to adjust settings on both iOS and Android devices.

Why ImgNeo?

Built for speed, privacy, and simplicity.

Lightning Fast

Process images in seconds with our optimized browser-based engine.

100% Secure

Images processed locally, never uploaded to any server.

Works Anywhere

Use on any device, any browser, anytime — no installation needed.

No signup requiredWorks offlineNo file limitsForever free

Image Merger