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2026-08-17T00:00:00.000ZImage Stitching2 min read

Merge Multiple Images Into One: Free Long Image Combiner

How to combine multiple images into one? Learn to merge images into a single long image for free — vertical, horizontal, and grid stitching for chat records, screenshots, and product photos.

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Combining multiple images into one long image is a common need for social posts, tutorials, and sharing chat records. Whether you want to stitch vertically into a long screenshot, stitch horizontally into a comparison, or build a grid collage, an online tool does it in seconds. This article shows you how.

When to merge multiple images

  • Chat records: stitch several chat screenshots vertically into one for sharing
  • Tutorial steps: combine operation screenshots into a flow
  • Product comparison: line up product photos horizontally
  • Asset organization: group related images into one file for easy saving

Merge images into one with PixelForge

Open the PixelForge Image Stitch Tool — browser-local processing, no uploads.

Step 1: Upload multiple images (JPG, PNG, WebP). Step 2: Choose the stitch mode:

  • Vertical: stack top to bottom (chat records, long screenshots)
  • Horizontal: side by side (comparisons, panoramas)
  • Grid: rows and columns (collages, 3x3 grids) Step 3: Reorder and adjust spacing. Step 4: Download the merged long image.

Merging tips

  1. Crop first: trim blank space and taskbars from each screenshot for a cleaner result — use the crop tool
  2. Unify orientation with the rotation tool before stitching
  3. Compress after merging with the image compressor — long images get large
  4. Pixelate sensitive info in chats first with the mosaic tool

Related Tools

Image Stitch →Multi-Size Crop →Smart Compress →

FAQ

How do I combine multiple images into one long image?

Upload them to the [PixelForge Stitch Tool](https://img-tools.top/stitch) and choose vertical stitching — it produces a top-to-bottom long image, perfect for chat records and screenshots.

Can images be stitched horizontally?

Yes. The tool supports horizontal stitching for comparisons and panoramas, plus grid mode for row-and-column collages.

What if my images have different sizes?

The tool auto-unifies width (vertical) or height (horizontal). For the neatest result, [crop](https://img-tools.top/crop) them to matching dimensions first.

Does stitching lose quality?

No. Stitching just arranges images; each image keeps its full quality. A blurry original stays blurry, though.

The merged long image is too big — what now?

Run it through the [Smart Compress Tool](https://img-tools.top/compress) before sending or posting to avoid failures or auto-compression.

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