How do I change the order of images?

Simply drag and drop thumbnails to rearrange them. Each image shows its position number. The final merged image follows this order.

What's the difference between horizontal and vertical merging?

Horizontal merging places images side-by-side (left to right), while vertical merging stacks them on top of each other (top to bottom).

What image formats are supported?

JPG, JPEG, PNG, GIF, WebP, BMP, and TIFF are all supported as input. The merged output is a PNG file.

Are my images safe and private?

Yes — all processing happens in your browser using the Canvas API and FileReader. Nothing is ever uploaded to a server.

How many images can I merge at once?

There's no hard limit, but we recommend up to 20 images per merge for best performance. For more, merge in batches.

Can I add more images after I have already uploaded some?

Yes — click "Add More Images" anytime to append additional files to your current set before merging.

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Free Image Merger — 100% Browser-Based

Merge Images Online

Combine multiple images horizontally or vertically. Drag to reorder, instant preview. Your images never leave your device.

Drag & Drop H / V Merge Live Preview No Upload

How It Works

Upload Your Images

Click the upload zone or drag and drop any number of JPG, PNG, GIF, or WebP files — up to 10 MB each.

Order & Configure

Drag thumbnails to reorder them, then choose horizontal (side-by-side) or vertical (stacked) layout.

Merge & Download

Hit Merge and your combined image is generated in-browser. Download the PNG instantly — no waiting.

Powerful Features

Drag & Drop Ordering

Rearrange images by dragging into your preferred sequence before merging.

Horizontal & Vertical

Side-by-side or stacked — switch layouts with a single click.

Live Preview

Numbered thumbnails show your exact order before you commit to merging.

100% Private

All processing is client-side. Your images never leave your device.

∞

Images at once

10 MB

Max per image

0 s

Upload time

Free

Always

Good to Know

Supported Formats

JPG, JPEG, PNG, GIF, WebP, BMP, and TIFF are all accepted as input. Output is always PNG for lossless quality.

File Size Limit

Each individual image can be up to 10 MB. Very large merged canvases may take a moment to render.

No Server Upload

Your images are read with the FileReader API and rendered on a canvas — entirely local to your browser.

Ordering

Drag any thumbnail to reorder before merging. The numbered badge always reflects the final merge sequence.

Output Quality

The merged image is exported as a lossless PNG using the browser canvas API at full resolution.

Batch Merging

For best performance we recommend up to 20 images per merge. For larger sets, consider merging in batches.

Frequently Asked Questions

: Simply drag and drop thumbnails to rearrange them. Each image shows its position number. The final merged image follows this order.
: Horizontal merging places images side-by-side (left to right), while vertical merging stacks them on top of each other (top to bottom).
: JPG, JPEG, PNG, GIF, WebP, BMP, and TIFF are all supported as input. The merged output is a PNG file.
: Yes — all processing happens in your browser using the Canvas API and FileReader. Nothing is ever uploaded to a server.
: There's no hard limit, but we recommend up to 20 images per merge for best performance. For more, merge in batches.
: Yes — click "Add More Images" anytime to append additional files to your current set before merging.

Ready to merge your images?

No sign-up, no watermarks, no limits. Entirely free and private.