Merge Images Online
Merge two or more images vertically or horizontally into one image. Resize, align, add borders and download the final image directly in your browser.
Drop your images here
Combine 2 to 20 images side-by-side or stacked vertically
Export Options
Paste Image URL
Enter the direct web URL of an image (e.g. ending in .jpg, .png, or .webp) to import into the merge tool.
Combine Photos Side-by-Side or Stacked Online Free
SmartDocify's Merge Images Online tool allows you to effortlessly combine multiple pictures horizontally or vertically into a single seamless graphic. Whether you are creating a side-by-side product comparison, designing a vertical Instagram photo strip, assembling a multi-panel comic strip, or stitching panoramic scenery together, our client-side image stitcher delivers pixel-perfect results in seconds.
Unlike conventional online graphic tools that compress your uploads or enforce restrictive daily limits, SmartDocify processes your images with native HTML5 Canvas hardware acceleration right in your browser. This ensures maximum image sharpness, full camera resolution retention, and total personal data privacy because your files never touch external servers or third-party cloud storage.
Horizontal & Vertical Stitching
Arrange your pictures side-by-side in horizontal rows or stack them top-to-bottom in vertical columns with flexible alignment controls.
Aspect Ratio & Resizing Modes
Automatically match the height or width of images of varying sizes using Match Largest, Match Smallest, or exact Custom dimensions.
Custom Borders & Spacing Gaps
Fine-tune gap spacing between individual pictures, apply outer border frames, and customize background colors including transparency.
Multi-Format Lossless Export
Export your merged image instantly in lossless PNG, compressed JPG with custom quality sliders, or modern WebP format without watermarks.
Popular Use Cases for Merging Images
- Before & After Transformations: Create side-by-side fitness, home renovation, or photo retouching comparisons.
- E-Commerce & Product Showcases: Place multiple angles of a product side-by-side on Amazon, eBay, or Shopify listings.
- Social Media Photo Strips: Stack two to four photos vertically for Instagram Stories, Pinterest pins, and TikTok slideshows.
- Documentation & Receipts: Combine multiple invoice receipts or ID card scans into a single printable file.
- Creative Collage Making: Arrange snapshots, comic panels, or infographics with clean borders and uniform spacing.
How to Merge Images Online
Follow these four simple steps to merge two or more pictures directly in your browser.
Upload Your Images: Drag & drop 2 to 20 images into the dropzone, click "Choose Images", or paste directly from your clipboard with Ctrl+V.
Arrange the Sequence: Drag and drop the image cards or click the arrow buttons to order your photos in the exact sequence you want.
Customize Layout & Spacing: Choose Vertical or Horizontal orientation, adjust spacing gaps, border thickness, alignment, and background color.
Download or Copy: Preview the combined canvas in real time, choose your preferred format (PNG, JPG, or WebP), and click "Download Merged Image".
Frequently Asked Questions
Common questions about combining and merging photos online with SmartDocify.