How does the image merge tool work?

Upload multiple images and merge horizontally, vertically, or in a grid layout with spacing and alignment options.

Yes, this tool is 100% free to use online with no registration or payment required. No hidden charges.

Absolutely. All processing is done locally in your browser. No data is uploaded to any server or stored anywhere.

What browsers are supported?

Chrome, Firefox, Safari, and Edge are fully supported. The tool works on both desktop and mobile devices.

Are there usage limits?

No, you can use this tool as many times as you need. There are no daily limits or usage caps.

Does it work offline?

After the page loads, the tool works entirely in your browser. No internet connection is needed for processing.

Free Online Image Merge Tool

What merge modes are supported?

3 modes: ① Horizontal: two images side by side; ② Vertical: two images stacked; ③ Grid: 2×2 grid layout (requires 4 images). Adjust order, spacing, and alignment before merging.

How is the output size calculated?

Horizontal merge: total width = imageA width + spacing + imageB width, total height = taller of the two. Vertical merge: similar. Choose 'top', 'center', or 'bottom' alignment for different height/width images. Images are never stretched or cropped.

What image formats are supported for input/output?

Input: PNG, JPG/JPEG, WebP, GIF. Output: PNG (lossless, recommended) or JPEG (lossy, adjustable quality). Use PNG for text screenshots or images needing transparency.

Is image merging done locally or on a server?

Completely local browser processing using HTML5 Canvas API. Your images are never uploaded to any server. Works even offline.

🖼️ Image Merge Tool

Frequently Asked Questions (FAQ)

What merge modes are supported?

How is the output size calculated?

What image formats are supported for input/output?

Is image merging done locally or on a server?