About Merge Images Online

Why I built this

I needed to put two screenshots side by side. The first few tools I found all wanted the same thing: upload your files, wait, then download the result. For two screenshots that was mildly annoying. For a photo of a passport or a signed contract, it is genuinely a bad idea, and those are exactly the kinds of images people combine every day.

The frustrating part is that none of it is necessary. Browsers have been able to decode, draw, and export images on their own for years. The upload step in most of these tools exists because it is easier to build that way, not because the job requires it.

So I built the version I wanted: the whole merge happens on your device, in a canvas, and your files never travel anywhere. It is faster than uploading, it works on a plane, and there is no server-side copy of your photos to leak, subpoena, or forget to delete.

Who I am

I have spent more than five years building web applications, both professionally and on my own. By day I work as a software engineer on enterprise applications. Outside of that I build independent web products, which is where this tool comes from.

Most of my work is in JavaScript and TypeScript with React and Next.js, plus Java and Spring Boot on the backend and a fair amount of time spent on performance and web architecture. That background is the reason this site loads the way it does: the merge tool is plain browser APIs rather than a heavy image library, and the pages around it ship almost no JavaScript at all.

What I believe about online tools

Online tools should be fast, free, and should respect the person using them. That is not a marketing line, it is a set of constraints I actually design against, and it rules things out.

It means no account wall in front of a one minute task. No watermark on your own photos. No quietly uploading your files when the browser could do the work. When a feature can be built without touching your data, that is how it gets built.

What Merge Images Online does

It takes two or more pictures and arranges them into one image, with enough control to get the result you actually wanted.

• Combine any number of photos in a row, a column, or a grid.
• Reorder, rotate, and duplicate images before you export.
• Control the gap, border, divider colour, and background.
• Export as PNG, JPG, WebP, or PDF at the quality you choose.
• Works offline once loaded, and installs like an app if you want it to.

How it is paid for

It is free, with no signup, no watermark, and no limit on how many images you merge. There is no paid tier and nothing is held back.

The site may carry advertising in future to cover hosting, and if that happens the privacy policy will say so before a single ad appears. What will not change is the part that matters: your images stay on your device.

Get in touch

This is a project I maintain myself, so messages reach me directly rather than a support queue. If something is broken, confusing, or missing, I would genuinely rather hear about it. Email contact@mergeimagesonline.com, or find me on the links above.