Add images
Choose or drop multiple images
PNG, JPG and WebP - up to 30 images

Add at least two images to merge.

Image order
0 images
Uploaded images will appear here. Drag them or use Up and Down to reorder.
Live preview
0 x 0 px
Upload images to build the merged PNG preview.
Images
0
Layout
Vertical
Output
Not ready

Merge PNG Images Online for Free

Use this free Merge PNG tool to combine multiple images into one high-quality PNG file. Arrange images vertically, place them side by side horizontally or create a clean grid. The live preview updates when you change image order, spacing, padding, size or background.

The tool preserves PNG transparency when Transparent is selected. It can also accept JPG and WebP images when you need to combine different source formats and download the final result as a single PNG.

Flexible layoutsMerge PNG files vertically, horizontally or in an automatic multi-column grid.
Transparent outputKeep transparent areas or use white, black and custom background colors.
Private processingImages are combined locally in the browser and are not uploaded by this tool.

How to Merge PNG Files

  1. Choose or drag and drop two or more PNG images into the upload area.
  2. Select Vertical, Horizontal or Grid as the merge direction.
  3. Drag image rows or use Up and Down to set the correct order.
  4. Choose original sizing, match the largest image or match the smallest image.
  5. Adjust spacing, outer padding, alignment and background.
  6. Check the merged dimensions in the live preview.
  7. Press Merge & Download PNG to save the combined image.

Vertical, Horizontal and Grid PNG Merging

Merge PNG images vertically

Vertical mode stacks every image from top to bottom. It is useful for long screenshots, comic panels, step-by-step instructions, product comparisons and document pages. Center alignment can keep images with different widths visually balanced.

Combine PNG images side by side

Horizontal mode places images from left to right. Use it to create before-and-after pictures, comparison graphics, social media banners and side-by-side charts. Match Largest or Match Smallest can normalize image height while preserving aspect ratio.

Create a PNG image grid

Grid mode arranges uploaded images into rows and columns. Choose an exact column count or let Auto create a balanced grid. Spacing and padding help separate thumbnails, photos, icons or product images.

Advanced Merge PNG Features

  • Upload as many as 30 PNG, JPG or WebP images.
  • Drag-and-drop reordering plus mobile-friendly Up and Down buttons.
  • Rotate individual images in 90-degree steps before merging.
  • Keep original dimensions or normalize images by the largest or smallest size.
  • Control spacing from 0 to 200 pixels and outer padding up to 300 pixels.
  • Transparent, white, black and custom-color backgrounds.
  • Original, 2x and 3x output scale with automatic browser safety limits.
  • Live canvas preview with exact output width and height.
Transparency tip: select Transparent background and download as PNG. JPG files do not contain transparency, but transparent areas from PNG and WebP sources can remain transparent in the merged result.

Why Combine PNG Files in the Browser?

Browser-based processing avoids waiting for an upload and gives immediate visual feedback. Your selected images are decoded and drawn on a local canvas. The final PNG is created on the current device, which is useful when working with screenshots, design assets or private documents.

Very large output dimensions can exceed a browser's canvas limit. When necessary, this tool safely reduces the selected output scale while preserving the full layout. Choosing 1x scale or smaller source images can help when merging extremely large screenshots.

Frequently Asked Questions

How do I merge multiple PNG files into one?

Upload at least two images, choose a layout, arrange their order and press Merge & Download PNG.

Can I merge PNG images vertically?

Yes. Vertical mode stacks the images from top to bottom and supports spacing, padding and horizontal alignment.

Can I combine PNG images side by side?

Yes. Horizontal mode places every image from left to right and can normalize their heights.

Does the merged PNG keep transparency?

Yes. Select Transparent as the background to preserve transparent pixels in supported source images.

Can I change the order of uploaded images?

Yes. Drag image rows on desktop or use the Up and Down buttons on any device.

Can I add space between merged images?

Yes. Set the spacing in pixels and optionally add outer padding around the complete merged canvas.

Are my images uploaded to a server?

No. This version processes and merges images locally in the browser without uploading them to a server.

Does Merge PNG work on mobile?

Yes. The responsive interface keeps settings in two-column rows and provides buttons for reordering images on phones.