How to MERGE multiple videos without re-encoding using a free tool in just a minute
You can combine videos into one without re-encoding. This is very fast and easy, it takes only a few seconds.
How to join two or more videos into a single video, using a free tool called Losslesscut. With Losslesscut you can combine videos into one, provided they have the same resolution, framerate and codec, without re-encoding. This is very fast and easy, it takes only a few seconds and I've used it to combine multiple videos in one, such as a long course that I edited as a multi-part course, and uploaded as a single video.
Losslesscut allows you to simply drag all your videos on top of the window, confirm the order you want them in the final video. It allows you to rearrange the videos and then you click 'Merge' and it will export a final video with all of them combined.