[Online Tool] Combine Multiple Images into One — Free Online Image Stitching Tool

Posting to social media, making comparison images, organizing product showcase visuals — sometimes you just need to combine several photos into one.

The built-in collage feature on most phones is basic, with fixed layouts and limited flexibility. Photoshop is overkill. Apps either add watermarks or lock features behind a subscription.

Toolshu's Online Image Stitcher lets you upload multiple images, choose horizontal or vertical layout, adjust gap and output quality, and download the merged result in one click — all processed locally in your browser, no files uploaded to any server.

🔗 Tool URL: https://toolshu.com/en/pintu

What Can It Do?

Upload multiple images and the tool arranges them in sequence and stitches them into one — either horizontal (side by side) or vertical (top to bottom).

Gap control: Set the spacing between each image. Zero means seamless stitching; larger values add visible spacing. White gaps suit a clean minimal look.

Output quality: A slider controls the output quality. 100 is lossless (larger file size); 80–90 is sharp enough for everyday use with a much more manageable file size.

Reorder images: Drag and drop in the preview area at the bottom to rearrange the order — no need to re-upload if you change your mind.

Typical Use Cases

Product comparison images: Place two items side by side in a horizontal layout — strengths and differences are immediately visible. Standard practice for e-commerce detail pages and review articles.

Before and after shots: Weight loss, home renovation, photo retouching — two images side by side land far harder than posting them separately.

Social media long images: Instead of posting a grid of nine separate photos, stitch them vertically into one long image and post it as a single photo — cleaner and simpler.

Chat screenshot compilation: When a conversation spans several screenshots, stitch them vertically into one complete image — much easier for others to follow.

Step-by-step tutorial images: Screenshot each step of a process, stitch into a long image, and share as one file — a far better reading experience than a pile of separate images.

Privacy

All image stitching happens locally in your browser — no data is sent to any server. Safe to use with ID photos, contract screenshots, and private images.

If you need to crop or resize the stitched result, Toolshu's Online Image Cropper pairs naturally with this tool: https://toolshu.com/en/image-cropper

👉 Combine your images into one: https://toolshu.com/en/pintu

Toolshu Online Tools — toolshu.com — a full suite of image tools, no installation needed.