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Image Stitching
Drag files here orclick to upload
5 files, max 5M each
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About This Tool
Image Stitching is a completely free online image join tool that joins multiple images into one long image vertically or horizontally, with adjustable alignment and background color — all processed locally in your browser; files are never uploaded to any server, keeping your privacy safe.
How to Use
- Add Images
Click "Add File" or drag and drop multiple images; batch upload is supported.
- Set Layout
On the right, set the layout (horizontal / vertical), align (left / center / right) and background color.
- Reorder
If needed, switch ascending / descending or drag the file list to change the join order.
- Start
Click "Start" and wait for the browser to finish locally.
- Download
When joining finishes, click "Download" to get the ZIP of the long image.
Use Cases
- Long images: join multiple screenshots into one long image for easy sharing on social platforms
- Asset merging: combine a series of images (e.g. step images, stickers) into one output
- Comparison: join several similar images horizontally for side-by-side comparison
Key Advantages
- Completely Free
No payment or registration needed — open the page and use all join features unlimited times.
- Privacy Safe
All joining happens locally in your browser; files are never uploaded to any server, protecting your privacy.
- Flexible Layout
Supports horizontal / vertical layout, multiple alignment modes and background colors for different needs.
- Batch Processing
Add multiple images at once and join them in one output after reordering freely.
- Fast Joining
Local computation needs no network transfer, so processing is fast with no queueing.
FAQ
Common browser-decodable image formats (JPG / PNG / WebP, etc.) are supported; output is PNG.
By default images are arranged in ascending order (upload order); you can switch to descending, or drag the file list to reorder.
The tool aligns by the longest edge; unfilled areas are filled with the background color, and left / center / right controls the position.
If the joined canvas is too large, it is automatically scaled down so the browser can process it. Avoid overly large individual images.
Images are processed entirely in your browser and are never uploaded to any server — feel free to use it.
In principle there is no fixed limit, but it is bounded by browser memory. We recommend not joining too many images at once for smooth performance.
Currently it offers neat horizontal / vertical layout only; circular or shaped joining is not supported, but you can adjust the gap with background color.
Yes. The background color can be set to transparent, leaving gaps unfilled; exporting as PNG keeps the transparency.
Yes. The tool is responsive and works in mobile and tablet browsers for upload, joining and download.
Make sure images are not corrupted and formats are supported, then refresh and re-upload. If it still fails, try a newer browser or fewer images.
No. Joining runs locally in your browser; only loading the page for the first time needs a network.
No professional software to install; works cross-platform instantly and is completely free — ideal for quickly merging images into a long image to share.
Content last updated：2026-07-10
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