Is there a limit to how many images I can join?

There is no hard limit on the number of images. However, joining a very large number of images or very high-resolution files may be slow depending on your device memory and processing power.

What happens if my images are different sizes?

You can choose an alignment option (top, center, or bottom for horizontal layouts; left, center, or right for vertical). The tool aligns images according to your selection and fills any remaining space with the background color.

Can I reorder the images after uploading?

Yes. After uploading, you can drag and drop images in the preview area to rearrange their order before generating the final combined image.

What output formats are available?

You can download the merged image as JPG (smaller file size), PNG (lossless with transparency support), or WebP (modern format with excellent compression).

Can I add spacing between the images?

Yes. You can set a custom gap in pixels between images and choose a background color for the spacing. This lets you create clean, professional-looking composite images.

Image Joiner

Merge multiple images side by side, vertically, or in a grid layout.

Spacing: 0px

Add Images to Join (min 2, max 10)

JPG, PNG, WEBP supported

Combining multiple images into a single composition is essential for creating comparison graphics, social media collages, product showcases, documentation screenshots, and before-and-after presentations. Our free Image Joiner tool lets you upload 2 to 10 images and combine them with flexible layout options — horizontal side-by-side, vertical stacked, 2-column grid, or 3-column grid — with adjustable spacing between images. The tool uses the HTML5 Canvas API to calculate the optimal canvas dimensions based on your selected layout and input image sizes, then renders all images onto a single canvas with your chosen spacing and background color. You can output the combined image as JPEG, PNG, or WebP format with quality controls for the best balance of file size and visual quality. Images are automatically scaled to match dimensions within the layout, ensuring a clean, professional result regardless of whether your source images have different sizes or aspect ratios. The entire process runs locally in your browser — your images are never uploaded to any server, making it safe for confidential content. Whether you are a social media manager creating comparison posts, a product photographer combining multiple angles, a developer making documentation screenshots, or a student assembling project visuals, this tool delivers professional image compositions in seconds without any software installation or design skills required.

How to Join Images

Upload Your Images

Click the upload area or drag and drop 2 to 10 images. Reorder them by dragging if needed. JPG, PNG, WebP, and GIF formats are supported.

Choose Layout

Select your preferred layout: horizontal (side by side), vertical (stacked), 2-column grid, or 3-column grid. Preview updates in real time.

Adjust Settings

Set the spacing between images (0-50 pixels) and choose your output format (JPEG, PNG, or WebP) with quality controls.

Download Combined Image

Click the download button to save your combined image. The tool calculates optimal dimensions and renders all images onto a single canvas.

Why Use Image Joiner?

Combine multiple images into professional compositions without design software

Four layout options: horizontal, vertical, 2x2 grid, and 3x3 grid

Adjustable spacing and background color for clean, polished results

Automatic scaling ensures consistent sizing regardless of input dimensions

Multiple output formats: JPEG for photos, PNG for graphics, WebP for web

Complete privacy — all processing happens locally in your browser

Use Cases

Creating before-and-after comparison imagesBuilding product photo collages for e-commerce listingsCombining screenshots for documentation and tutorialsMaking social media multi-image posts and storiesAssembling photo grids for portfolios and presentationsCreating side-by-side visual comparisons for reports

Best Practices for Image Joiner

Use images with similar aspect ratios for the most uniform layouts
Add spacing (5-10px) between images for a clean, professional look
Choose PNG output when your images contain text or sharp edges
Use JPEG output for photographic content to keep file sizes manageable
Start with horizontal layout for 2-image comparisons and grid for 4+ images