How do I merge images online?

Upload two or more images using our tool, choose a layout (horizontal, vertical, or grid), adjust spacing and background color, preview the result live, then download the merged image.

Is the image merger free?

Yes. Our image merger is 100% free with no watermarks, no registration, and no file size limits beyond what your browser can handle.

Does the tool upload my images?

No. All processing happens locally in your browser using HTML5 Canvas. Your images never leave your device.

Can I merge more than two images?

Yes! You can add up to 20 images and merge them in any order. Drag and drop to reorder them before merging.

What output formats are supported?

Download the merged image as PNG (lossless), JPEG (compressed), or WebP (modern format). You can also adjust JPEG/WebP quality.

Merge Images Online Free

How to Merge Images Online — Best Practices & Tips

Merging images combines two or more photos into a single unified file — useful for before-and-after comparisons, product collages, photo stitching, and social media banners. Our free online image merger processes everything client-side, so files never touch a server, protecting your privacy completely. To combine pictures: upload up to 20 images, choose horizontal, vertical, or grid layout, set spacing and background colour, adjust alignment, then preview and download. Best practice: use images of similar dimensions for the cleanest results, and export as PNG for transparent backgrounds or WebP for optimised web delivery.

Three Layout Modes

Merge side-by-side (horizontal), top-to-bottom (vertical), or arrange in a custom grid with configurable columns.

Drag to Reorder

Drag and drop images in the list to change their order before merging. No need to re-upload files.

Custom Background & Spacing

Set any background colour and control the gap between images from 0 to 200px for a polished, professional output.

Alignment & Scale Controls

Align images to center, top/left, or bottom/right. Scale all images uniformly 10–200% before compositing.

Live Canvas Preview

Instantly preview the merged result on an HTML5 Canvas before downloading, with real-time feedback on dimensions.

PNG, JPEG & WebP Export

Choose your output format and quality level. PNG for lossless, JPEG for compact file sizes, WebP for optimal web use.

Zero Upload — 100% Private

Your images never leave your device. The entire merge operation runs in your browser using HTML5 Canvas technology.

Mobile-Friendly Interface

Responsive design works perfectly on phones, tablets, and desktops. Merge images anywhere without installing apps.

Frequently Asked Questions

How do I merge two images side by side?▾

Select the "Horizontal" tab, upload your two (or more) images using the upload zone or by dragging files in, adjust gap and alignment settings, then click "Merge Images". Preview the result and click "Download Merged Image".

Can I merge more than 2 images at once?▾

Yes! You can add up to 20 images in one session. Use the Grid layout to organise many images into rows and columns, or chain them horizontally or vertically.

Do my images get uploaded to your server?▾

Absolutely not. All image merging happens entirely in your browser using the HTML5 Canvas API. No data is ever transmitted to any server.

What is the best format to save a merged image?▾

Use PNG for images requiring transparency or pixel-perfect quality. JPEG is best for photographs where smaller file size matters. WebP offers the best compression-to-quality ratio for web use.

Can I create an image collage with this tool?▾

Yes. Switch to the "Grid" tab, upload multiple images, set the number of columns, choose spacing and background color, then merge. This creates a neat photo grid or collage layout instantly.

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