How can I combine or merge multiple videos into one on Windows 11?

Video Joiner is definitely one of those obscure, free tools that fits what you're looking for. It's a command-line tool built for Windows that helps you how to combine videos into one file, but it does need a bit of setup since it relies on FF mpeg to do the actual work. If you're okay with a command-line approach and want a free tool that actually standardizes videos so they merge properly, it's a solid pick.

Here's the quick rundown on using it:

Step 1: First, install FF mpeg: This is a must. The tool needs FF mpeg to work, and it'll look for it in your system PATH or a common install folder.

Step 2: Download the script: Grab video_joiner.cmd from its GitHub page.

Step 3: Run it: Double-click the script, and a command window will open.

Step 4: Choose your settings: It'll ask you to pick a resolution for the output (like 720p or 1080p), name your final file, and then let you add video paths—you can actually drag and drop files right into the window to paste the path.

Step 5: Wait for it: The tool will standardize each clip and then combine them. You'll find the final merged video in the same folder as the script.

Since it requires FF mpeg and uses the command line, it's not as straightforward as a typical app with a graphical interface. But if you're comfortable with that and want a free, no-fuss way to how to combine videos into one on Windows, this tool gets the job done without any bloat.