Merge Image Online Free — Private Browser Composer
Open the merge tool
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MergeImage · Last verified 2026-08-10
Merge image files privately in your browser
Merge image files in one private browser workspace. Add two or more pictures, arrange their order, choose a clean layout, and download a finished composition without creating an account or transferring the originals to our server.
merge image — Combine up to 30 PNG, JPEG, or WebP input files.<br>merge image — Keep natural dimensions or normalize width, height, or grid cells.<br>Export the completed merge image as PNG, JPEG, or WebP.
Private browser workspace
Merge images without uploading them
Private by design: your files stay on this device.
Drop images here<br>or choose files from your device<br>PNG, JPEG, WebP · up to 20 MB each
Choose images<br>Clear all
Ready
Layout
HorizontalVerticalGridSmart stitch
Grid columns<br>Spacing
Image sizing<br>Keep original size<br>Match width<br>Match height<br>Fit equal cells
Alignment<br>Start<br>Center<br>End
Background<br>Transparent background
Output check<br>Add images to calculate the final canvas.
Planned canvas<br>Add images to calculate the final canvas.
Large output handling
Scale to safe size<br>One image, reduced proportionally.
Keep size and split<br>Numbered images in one ZIP file.
Merge images
Merged result<br>Your preview will appear here after the merge.
Your preview will appear here after the merge.
Format<br>PNG<br>JPEG<br>WebP
Quality<br>92%
Download image
01
A practical merge image workflow
merge image — From separate files to one predictable canvas
The merge image workspace is designed for the real tasks that usually follow a download folder, scan, or screenshot session. You can combine product references, before-and-after views, receipts, study notes, mood-board fragments, or sequential screenshots. The upload area sits first because the useful action should be visible before any long explanation.
After selecting files, the merge image queue shows every item in output order. Drag a card or use the accessible move buttons to reorder it, or remove it without touching the source file. The preview is generated only when you ask, so layout experiments remain quick and reversible.
Choose horizontal when images should read side by side, vertical for long comparisons, grid for balanced contact sheets, and smart stitch for consecutive screenshots with repeated overlap. Spacing, alignment, background, and sizing options make the merge image result usable without another editor.
merge image — Combine up to 30 PNG, JPEG, or WebP input files.<br>merge image — Keep natural dimensions or normalize width, height, or grid cells.<br>Export the completed merge image as PNG, JPEG, or WebP.<br>merge image — Use smart overlap trimming for consecutive screenshots, with a safe manual fallback.
Merge image layouts and their best-fit tasks<br>LayoutBest forSizing behaviorOrder<br>merge image — HorizontalBefore-and-after views, bannersMatch height or natural sizeLeft to rightmerge image — VerticalScreenshots, scans, step sequencesMatch width or natural sizeTop to bottommerge image — GridContact sheets, product setsEqual cells or natural fitRow by rowmerge image — Smart stitchConsecutive scrolling screenshotsMatch width and trim confident overlapTop to bottom
02
merge image — Why local image processing matters
merge image — Privacy is part of the architecture, not a badge
When you merge image files here, the browser reads the selected files through standard web file capabilities, decodes them for a local canvas, and creates the export on the same device. The interface does not need a paid image service, a remote processing queue, or an account database. Network inspection can therefore confirm that the originals are not uploaded by the tool.
Local processing is especially useful for ordinary but sensitive material such as internal mockups, family photos, invoices, application documents, or unpublished creative work. It also removes the waiting time caused by uploading several large photos and downloading them again. Device memory still matters, so the workspace publishes clear limits instead of promising unlimited output.
The current safety boundary is 30 files, 20 MB for each input, and automatic reduction when the result would exceed a 12,000-pixel edge or 80 megapixels. These are product limits rather than browser standards. They make failures easier to understand and reduce the chance that one oversized canvas freezes a phone or low-memory laptop.
03
merge image — Control quality without hidden processing
merge image — Choose an export format that matches the content
PNG is a strong default for screenshots, interface captures, text-heavy graphics, or any merge image output that needs transparency. JPEG usually creates a smaller file for photographs and lets you choose a quality level. WebP can balance size and visual fidelity in browsers and publishing systems that...