: Open your MP4, go to Edit > Split Clip (or press Command-Y) to break the video into segments. You can then delete the pieces you don't need and save the remaining part.
If you want to do this quickly without installing software, these browser-based editors are highly recommended: 144 mp4
: A fast option where you can use the "S" key to split clips on the timeline and remove unwanted sections. : Open your MP4, go to Edit >
: Upload your MP4, right-click where you want to cut, and hit "Split." You can then delete parts or shorten the duration before downloading. : Upload your MP4, right-click where you want
: Drag your video onto the timeline and use the scissors icon to slice it into multiple pieces. This tool also lets you add transitions between segments.