Long Image Stitching Tool

Supports stitching multiple images vertically or horizontally into a long image, with customizable spacing, background color, and output format. Supports batch processing.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

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If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

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Upload images, set layout and export options, then generate the result. Only the first 20 images are shown for batch selection; processing and ZIP download include all images. Settings are saved on this device.

1Select Images

Select images or drop them here JPG / PNG / WebP / GIF / BMP / SVG

2File Overview

Image Count0

Total Size0 B

Max Width-

Max Height-

3Preview & Sort

Select images to preview the first 20

1Stitch Mode

Vertical Long Image Top to Bottom Horizontal Stitch Left to Right Grid Collage Arrange by Columns Masonry Balance by Height

2Size & Arrangement

Size Mode

Target width (px)

Target height (px)

Columns

Image spacing (px)

Margin (px)

Horizontal align

Vertical align

3Canvas style

Background color

Transparent background Enable

Image radius (px)

Shadow strength (px)

1Image export

Output format

Compression quality92%

Export scale

Pixel limit

2Batch grouping

Grouping method

Images per group

Single output filename

ZIP filename

Ready

Instructions

Software Usage Instructions

Select image files: Click the upload area to choose images, or drag and drop images into the upload area. Common image formats such as JPG, PNG, WebP, GIF, BMP, and SVG are supported.
Adjust image order: Drag image cards in the preview area to adjust the stitching order. You can also sort by file name, shuffle randomly, or remove individual images.
Set the stitching layout:
- Vertical long image: Images are arranged from top to bottom, suitable for tutorial screenshots, detail page materials, and long-image content.
- Horizontal stitching: Images are arranged from left to right, suitable for comparison images, flowcharts, and horizontal displays.
- Grid collage: Images are arranged by the specified number of columns, suitable for album collages and material archiving.
- Masonry layout: Images are balanced by column, suitable for combining images with different sizes.
Configure size and style: You can choose to keep the original size, unify width, unify height, fit into a fixed frame, or crop to fill the frame, and set image spacing, margins, alignment, background color, transparent background, rounded corners, and shadow.
Set export parameters: Choose PNG, JPG, or WebP format, and adjust compression quality, export scale, pixel limit, and grouping method. When exporting images individually, the original file names will be retained, and numbers will be automatically appended if duplicate names occur.
Save settings: Click “Save Settings” to save the current layout and export parameters for continued use the next time you open the tool.
Generate and download: Click “Generate Result” to preview the finished image. You can download the current preview image, or click “Download All Results (ZIP)” to save them as a package.

FAQ

A: Vertical long image arranges images from top to bottom, suitable for tutorials, lists, detail pages, and screenshot organization; horizontal stitching arranges images from left to right, suitable for before-and-after comparisons, horizontal processes, and wide-format displays.

A: Yes. After uploading, you can drag image cards in the preview area to adjust the order, or use the sort by name or shuffle buttons. The interface only displays the first 20 images for checking, but all imported images will be included during processing.

A: You can choose uniform width, uniform height, fit to a fixed cell, or crop to fill the cell. For vertical long images, uniform width is usually recommended; for horizontal comparison images, uniform height is usually recommended; for grid collages, you can use fixed cells.

A: PNG is suitable for images that need a transparent background or crisp lines; JPG is suitable for photo-based content and usually makes file size easier to control; WebP is suitable for web display and offers a good balance between image quality and file size.

A: No. Image reading, stitching, previewing, and exporting are all completed on the current device; the server will not receive any image files.

A: Image stitching uses memory and processor resources. You can lower the export scale, reduce the target size, use fixed-count grouping, or import images in batches before processing them.