Free Image Merger - Combine Multiple Photos into Collages Online
Merge images into collages with flexible layouts. Grid, side-by-side, masonry, or freeform arrangements. Create before/after comparisons, photo strips, product galleries. Adjustable spacing, borders, backgrounds. Perfect for Instagram posts and presentations.
What is Image Merger?
Our Image Merger combines multiple photos into beautiful collages with professional layouts. Upload 2-20 images and arrange them using preset grids (2×2, 3×3, 4×4), side-by-side comparisons, masonry Pinterest-style layouts, photo strips, or fully customizable freeform positioning. Perfect for creating before/after comparisons, product galleries showing multiple angles, Instagram collages, presentation slides, or memorabilia combining multiple moments into single shareable images.
The tool provides real-time preview with drag-and-drop repositioning. Each image can be individually resized using corner handles, repositioned by dragging, or aligned using snap guides. Customize spacing between images (0-50px gaps), add uniform borders, set background colors (white, black, transparent, or branded colors), and control padding. Choose between "fit" mode (shows full images with letterboxing) or "fill" mode (crops images to fill cells completely for clean edges).
Professional use cases include e-commerce sellers showing product variations in color/size, social media managers creating eye-catching multi-photo posts, real estate agents comparing property features, photographers building portfolio pages, and content creators making tutorial step-by-step images. The grid layout works perfectly for consistent product catalogs, while masonry creates dynamic visually-interesting collages for creative projects.
Export merged collages in JPG (best for photos), PNG (supports transparency), or WebP (smaller file sizes) with adjustable quality. Choose output dimensions from preset social media sizes (Instagram 1080×1080, Stories 1080×1920) or custom resolution. All merging happens locally in your browser - your photos remain completely private and never upload to any server.
Powerful Features
Everything you need in one amazing tool
Flexible Collage Layouts
Combine multiple images into collages with flexible grid layouts, freeform positioning, or custom arrangements
Preset Templates
Preset collage layouts - side-by-side, grid, stacked, photo strip, or Pinterest-style masonry
Full Customization
Adjustable spacing, padding, border width, background color, and individual image positioning
Real-Time Preview
Real-time preview with drag-and-drop repositioning and resize handles
Multiple Formats
Export merged collages in JPG, PNG, or WebP format with custom dimensions and quality
100% Private
100% private - all merging processed locally in browser, images never uploaded
How It Works
Get started in 4 easy steps
Upload Multiple Images
Select 2-20 images to combine into a collage
Choose Layout Style
Select preset grid, freeform, masonry, or custom arrangement
Adjust Spacing
Set gaps, padding, borders, background color
Download Collage
Save as single JPG, PNG, or WebP image
Why Choose Our Image Merger?
Stand out from the competition
Grid, masonry, freeform, side-by-side - arrange images any way you want
Quick-start collage layouts for common use cases (before/after, photo strips)
Adjust spacing, padding, borders, background - fine-tune every detail
Interactive editor with repositioning and resizing for perfect placement
Save collages in any format and resolution for web, print, or social media
All merging happens on your device - images never leave your computer
Perfect For
See how others are using this tool
Before/After Images
Create before/after comparison images for transformations, renovations, weight loss progress
Product Galleries
Combine product photos from multiple angles into single e-commerce listing image
Photo Strips
Make photo strip collages for Instagram Stories, Facebook posts, or printed memories
Comparison Charts
Design comparison charts showing variations (colors, sizes, styles) in one image
Event Collages
Create event collages combining multiple moments from weddings, parties, vacations
Pinterest Pins
Build Pinterest-style pin images combining multiple product shots or ideas
Frequently Asked Questions
Everything you need to know about Image Merger
Grid layout (equal-sized images in rows/columns) works for product variations, photo albums, consistent displays. Side-by-side (2 images horizontal) perfect for before/after comparisons. Stacked (vertical) good for step-by-step tutorials or timelines. Masonry (Pinterest-style with varied sizes) creates dynamic, visually interesting collages for creative projects. Freeform (drag anywhere, any size) offers maximum control for custom designs. Photo strip (single row) works for Instagram Stories or banner-style layouts. Choose based on image count and desired visual impact.
Follow design principles: use odd numbers of images (3, 5, 7) for more dynamic composition, maintain consistent spacing between images for clean organized look, choose background color that complements images (white for clean, black for dramatic, colored for branded), keep important subjects near center or following rule of thirds, balance visual weight (large/bright images on one side balanced by grouping on other), limit to 3-9 images (too many creates clutter). Add subtle borders to separate similar images, ensure same orientation or resize for consistency.
For social media: Instagram posts 1080×1080px (square) or 1080×1350px (portrait), Stories 1080×1920px, Facebook 1200×630px. For web use: 1200-1600px wide is sufficient (balance quality and load time). For printing: minimum 300 DPI - 8×10" print needs 2400×3000px, 11×14" needs 3300×4200px. For presentations: 1920×1080px (16:9 HD). If combining images of different resolutions, size the collage canvas to match your highest-resolution image to preserve quality. You can always downscale later but cannot upscale without blur.
This tool focuses on image merging only - combining photos into layouts. For adding text, logos, or graphics to your collage, use the completed collage as input to an image-text-overlay tool or general image editor. Workflow: first create image collage here (arranges photos), then add text/graphics in next step. This separation keeps each tool focused and performant. Alternatively, create text as image in any design tool, then include that text-image as one of the tiles in your collage layout.
The tool automatically resizes images to fit chosen layout while maintaining aspect ratios. For best results: use images of similar resolution (all high-res or all medium-res, avoid extreme mismatches), enable "fit" mode to show full images with letterboxing, or use "fill" mode to crop-to-fill cells. If one image is 300×300 and another is 3000×3000, the large image will be downscaled (fine) but the small image may be upscaled (pixelation). Pre-resize images to similar dimensions before merging for optimal quality, or use freeform layout where each image keeps its natural size.
Yes, absolutely private. All image merging and collage creation happens entirely in your browser using JavaScript and HTML5 Canvas. Your images are never uploaded to any server, never transmitted over the internet, and never stored or logged. The merged collage is generated locally on your device. You can even use this tool offline after the page loads. Your original images and final collage remain completely confidential.
Need a Custom Website Built?
While you use our free tools, let us build your professional website. Fast, affordable, and hassle-free.