Image Combiner — Complete Guide

1What is Image Combiner?

Combine multiple images into one.

Image Combiner is part of the Pixly suite of professional image tools. It runs entirely in your browser with no software to install, requires no design experience, and delivers results in seconds — whether you are processing one image or an entire batch. Every operation is applied on the full-quality decoded image, so the output preserves the fidelity of your original file.

2How does Image Combiner work?

Combining stitches images side-by-side or stacked, preserving every source at native resolution. Widths are equalized in horizontal mode by padding (not stretching) narrower images onto the chosen background, so nothing distorts. The optional gap uses your background color, and the tallest (or widest) source defines the final canvas.

This is the engine to use for before/after comparisons, long instructional strips and scan stitching — quality is identical to the inputs because no resampling occurs unless scaling is required.

3How to use Image Combiner — step by step

Using Image Combiner takes less than a minute from upload to download. The tool card at the top of this page is the live editor — everything below explains exactly what happens behind the scenes.

1. Step 1. Upload 2 or more images.
2. Step 2. Pick layout.
3. Step 3. Download the combined image.

4Key features at a glance

• Horizontal combine
• Vertical combine
• Grid layout

Each feature is designed to solve a specific, real-world problem — from page-speed optimization for developers to platform-perfect sizes for social media managers. Together they make Image Combiner a dependable part of any image workflow.

5Pro tips for the best results

A few professional habits will get noticeably better output from Image Combiner:

• Combine screenshots at identical widths for pixel-aligned tutorials.
• Transparent PNG inputs composite cleanly over any background color you pick.

6Who uses Image Combiner?

Web developers rely on it to keep pages fast — properly prepared images are the single biggest performance win most sites can make. Designers use it for the last mile of production work: format handoffs, corner rounding, frames and exports that match the platform they are shipping to.

E-commerce teams process entire product catalogs to consistent sizes and weights, which measurably improves load speed and conversion. Content creators and social media managers depend on it for daily platform-ready assets, while students and office teams use it to shrink scans and photos so they fit comfortably inside emails, forms and presentations.

7Supported image formats

Image Combiner works with all widely used image formats. Each format has strengths that make it the right choice for a particular job:

8Privacy & security

Your images stay yours. Files are transferred over an encrypted connection, processed on secure servers, and automatically deleted within 24 hours — nothing is shared with third parties and nothing is used for training or advertising. Because Pixly works in the browser, you can also process images from any device without installing software or creating an account.

9Frequently asked questions