Combine Images Online
Join chat screenshots or article captures into one long image. Vertical or horizontal stitch, processed locally.
Your files stay in the browser. Nothing is uploaded.
Use cases and practical choices
Support teams can organize chronological conversations, trainers can combine step-by-step screenshots, and shops or field teams can make before-and-after comparisons. Stitching arranges images without validating completeness or removing repetition. Retain separate originals when preserving a record matters.
Join images into a long screenshot
- Vertical or horizontal stitching
- Optional gap between images
- Batch select screenshots at once
How to stitch screenshots into one image
- Select at least two images. Similar widths work best for a vertical sequence; similar heights help with a horizontal sequence.
- Use the queue arrows to set top-to-bottom or left-to-right order, and remove duplicate or unwanted images.
- Choose vertical or horizontal stitching and set the gap. Zero gap places edges together; it does not automatically remove overlapping content inside screenshots.
- Generate and download the PNG, then inspect order, seams and text size. If a long result fails on a phone, use fewer images or split the task into several groups.
Image stitch FAQ
Can I combine chat history, inspection photos and product comparisons?
Vertical stitching suits chat screenshots and sequential instructions; horizontal stitching can suit side-by-side comparisons. The tool combines image boundaries without understanding content, so remove repetition and set the order yourself. Very long images may be compressed by messaging apps; check readability at the destination.
Does zero gap automatically remove screenshot overlap?
No. The tool neither detects duplicate regions nor captures a scrolling page. Zero gap simply places image edges together. If adjacent screenshots repeat the same messages, crop the overlap out of one screenshot before stitching or it will remain in the result.
What happens when the image dimensions differ?
Images are drawn at their original dimensions and centered on the cross-axis. The canvas uses the required maximum width or height and total sequence length. It does not stretch every image to match, so blank space and uneven seams can appear. Prepare similarly sized crops when a uniform layout matters.
Why does a large set become slow or fail?
Every output pixel must fit in one Canvas, so long high-resolution sequences need considerable memory and can hit browser size limits. Use smaller sources or stitch in groups instead of repeatedly retrying the same oversized set. The tool does not promise unlimited output length or a multi-page PDF.