Format Factory is a free, comprehensive multimedia toolkit. It provides audio and video converter, clipper, joiner, spliter, mixer, video downloader, screen recorder, etc. It has a video joining feature which can help users easily join two or more video files in one video file on computer.
Launch the media program on your PC. It is only compatible with Windows OS. No Mac version yet. From its home screen, you can see it provides various tools for Video, Audio, Picture, Document, DVD/CD/ISO and so on. Click to expand the Video category. Scroll down to find Video Joiner & Clip.
Click to open it in a new window. Here you can add source video clips, customize output settings. Click Add File button to browse to the folder where the source videos, movies are saved on your PC and import them into the Video Joiner. Optionally choose the file format or customize video quality and size. If you only to select part of a video to be merged with other video clips, select the video in the Source File List, then hit Clip button on the right side to play, preview and select Start Time and End Time.
Click OK button to add the videos, save the settings and go back to the main interface of Format Factory as shown in the previous screenshot above. Hit Start button in green at the top control bar as shown in the first screenshot to start joining all selected video clips into one file. The combined video will be saved to the output folder of the media program. From the left end of the taskbar of the program, you can find out the output folder and its location. Click Option from the top menu bar to change a different output folder if like.
Merge videos losslessly without re-encoding
The video joiner also allows users to join several videos into one file in a losslessly way provided that the source video clips have the same specs. You can find more details from this tutorial to combine videos without transcoding, re-encoding or quality loss.