Image Tools · Browser-based utility
Merge Images Online Free — Combine Photos
Combine multiple images vertically, horizontally or in a grid, control spacing, cell sizing, alignment and background color, preview the composition, then export PNG, JPG or WebP.
What this tool does
Combine multiple images vertically, horizontally or in a grid, control spacing, cell sizing, alignment and background color, preview the composition, then export PNG, JPG or WebP.
People often describe this task with phrases such as merge images online, combine images, join images, stitch photos, image collage maker and combine jpg. This page uses those terms only where they refer to the same underlying function.
How to use the Merge Images
- Open the Merge Images page and select or enter the source data required by the tool.
- Review the available controls instead of accepting defaults blindly when the destination has a size, format, layout or compatibility requirement.
- Run the operation and inspect the preview, status or generated result before treating it as final.
- Download or copy PNG, JPG, WebP and verify it in the destination application, browser, viewer or workflow that will actually use it.
Use the interactive tool above for the actual operation. The documentation below explains what the controls mean, what changes in the file/data, and how to troubleshoot common results.
Settings and capabilities explained
| # | Control or capability |
|---|---|
| 1 | Layout: vertical, horizontal or grid |
| 2 | Spacing in pixels |
| 3 | Grid column count |
| 4 | Sizing: original size, same width, same height or fit into grid cells |
| 5 | Alignment: center, start/top-left or end/bottom-right |
| 6 | Background color |
| 7 | Output: PNG, JPG or WebP |
| 8 | Live preview |
Supported input and output
- Input: multiple browser-supported images
- Output: PNG, JPG or WebP
How it works technically
Raster image operations work on decoded pixel data. Dimensions, alpha transparency, color representation and encoder settings can all affect the result independently.
Image merging creates a new canvas large enough for all source images plus spacing.
Uniform width/height modes require resampling some inputs so their dimensions align.
Grid layouts need both column count and cell sizing decisions; background color fills unused canvas areas.
Common use cases
- Stitch screenshots into one long image
- Place before/after images side by side
- Create a contact-style grid
- Combine product images for comparison
- Make a simple collage without a desktop editor
Choosing the right settings
- Use “same width” for vertical screenshot stitching.
- Use “same height” for horizontal comparisons.
- Choose PNG when sharp text or transparency matters; JPG can be smaller for photo-heavy compositions.
Common problems and fixes
Images appear misaligned
Choose a common sizing mode and set alignment explicitly.
There is unwanted empty space
Reduce spacing, change alignment, or choose a sizing mode that better fills the canvas.
Browser processing and privacy notes
The source code for this build performs the documented file transformation or analysis from browser JavaScript/Web APIs, and the video tools load FFmpeg.wasm for media processing. The site also contains third-party analytics, font/CDN and advertising scripts that can make ordinary network requests. Therefore, the precise claim made here is limited to the tool routine: it does not need a separate AutoClip file-upload API in order to perform the documented local operation.
For sensitive files, you should still use your browser’s developer tools or network controls if you need to independently verify the behavior of every third-party request in your environment.
Frequently asked questions
What does the Merge Images do?
Combine multiple images vertically, horizontally or in a grid, control spacing, cell sizing, alignment and background color, preview the composition, then export PNG, JPG or WebP.
What input and output does it use?
Input: multiple browser-supported images Output: PNG, JPG or WebP Outputs include PNG, JPG, WebP.
Do I need to install desktop software?
No desktop installation is required for this page. The interactive workflow runs from the web browser. Some advanced media features load browser-side JavaScript/WebAssembly libraries when needed.
Are selected files processed through the tool interface?
Yes. The implementation reads selected files with browser APIs and performs the documented transformation or analysis in the page. External libraries, analytics and advertising scripts may make their own network requests, so this statement is about the file-processing routine itself.
Images appear misaligned?
Choose a common sizing mode and set alignment explicitly.
There is unwanted empty space?
Reduce spacing, change alignment, or choose a sizing mode that better fills the canvas.