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Image Merger

Put several pictures together in one image: side by side, one above the other or in a grid, with an optional gap and background.

Runs locally in your browser – your data is not uploaded

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About the Image Merger

The image merger puts several pictures together in one image. Place them side by side, one above the other, or in a grid with as many columns as you like, for before-and-after photos, product shots, comics or screenshots.

Pictures of different sizes are lined up automatically: side by side they share the same height, stacked or in a grid they share the same width. Nothing is ever enlarged, so the result stays sharp.

The images are combined in your browser. They are not uploaded anywhere, so private photos stay on your device.

How to use it

  1. Choose 2 to 20 images (JPG, PNG, WebP, GIF, BMP or AVIF) or drop them on the page.
  2. Put them in order with the up and down buttons.
  3. Choose side by side, stacked or grid, and set the number of columns and the gap.
  4. Pick a background colour, or a transparent background for PNG and WebP.
  5. Check the preview and press Download merged image.

Features

  • Three layouts: Side by side, stacked, or a grid of 2 to 10 columns.
  • Automatic sizing: Images are scaled to the same height or width, never enlarged.
  • Gap and background: Add space between the images and choose its colour, or keep it transparent.
  • JPG, PNG or WebP: Save in the format you need, with a quality setting for JPG and WebP.
  • Private: Everything happens in your browser; no upload and no account.

Examples

Before and after

Two photos side by side with a 20 px white gap.

Long screenshot

Several phone screenshots stacked into one tall image.

Product sheet

Six product photos in a grid of three columns on a transparent PNG.

Limitations and notes

  • Up to 20 images of up to 50 MB each can be merged.
  • Very large results are reduced so they stay within 16,384 pixels per side and 50 megapixels.
  • Images keep their own shape; there is no cropping, rotating or free placement.
  • Animated GIFs are merged as their first frame.

Frequently asked questions

Can I merge photos of different sizes?

Yes. They are scaled to the same height side by side, or the same width stacked or in a grid.

Will my photos lose quality?

Images are only made smaller to match the others, never larger. Choose PNG or a high JPG quality for the best result.

How do I get a transparent background?

Choose PNG or WebP and tick Transparent background. JPG has no transparency, so it uses the background colour.

Can I change the order?

Yes. Use the up and down buttons next to each image.

Are my images uploaded?

No. They are combined in your browser and saved straight to your device.

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