Image Merger

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Image Merger & Collage — Combine Photos into One Image

Stack multiple images into a single picture — vertically or side by side — with adjustable spacing and background color. The classic use case: identity verification flows (AdSense, banks, exchanges, visa applications) that demand the front and back of a document combined into one image.

Unlike most online combiners, the merge happens entirely on your device — your ID photos, contracts, and private screenshots are never uploaded to any server. Arrange the order, pick a layout, and download a clean JPEG or PNG in seconds.

How to combine images into one

  1. Add two or more images — for ID verification, add the front side first, then the back.
  2. Choose the direction: vertical (stacked) is what most verification forms expect.
  3. Set a small gap (8–20 px) and a background color if the widths differ.
  4. Click merge and preview the combined image.
  5. Download as JPEG (smaller, fine for uploads) or PNG (lossless).

Frequently asked questions

Are my ID photos uploaded to a server?

No. The combining runs entirely in your browser using the canvas engine — your images never leave the device. This matters precisely because verification photos are among the most sensitive images you will ever handle.

Which collage templates are available?

Besides vertical stacking and horizontal side-by-side, there are 2×2 (4-image grid), 3×3 (9-image grid), "1 left + 2 right" and "2 left + 1 right" asymmetric layouts, plus a fully custom grid where you set the columns and rows (up to 10×10). Templates that do not match your current image count are disabled automatically.

Can I force a square or 9:16 canvas for social media?

Yes — the Canvas section offers aspect presets (1:1, 4:5, 9:16, 16:9, A4). The collage is contained and centered inside the chosen canvas, so nothing is cropped by the platform later. Add outer padding for a framed look, round the cell corners for a modern collage style, and pick a background: solid color, a blurred version of your first image (the classic letterbox look), or fully transparent (auto-exported as PNG).

Do grid layouts crop my images?

No. Grid cells draw images with contain-fit: each image is scaled to fit entirely inside its cell, centered, with the background color filling the rest. Nothing is ever cropped — important for documents and screenshots.

Which direction should I use for ID verification?

Almost all forms expect the vertical layout: front on top, back below, with a small gap. If the two sides have different widths, set a background color so the narrower side sits on a clean strip instead of stretching.

Why were my images scaled to a different size?

To produce a clean rectangle, each image is scaled to match the narrowest (vertical) or shortest (horizontal) image in the set — never upscaled, so no quality is invented. Keep source photos at similar sizes for pixel-perfect results.

JPEG or PNG for verification uploads?

JPEG at high quality is the safe choice — smaller files that stay under upload size limits while remaining fully readable. Use PNG when the images contain sharp text you want pixel-identical.

Related tools

PureKit · image-merge · Free online tool — files processed locally in your browser, no upload.