Mp4: 144

Find a tool for a (like Android or Linux). Learn how to merge multiple pieces back together.

: 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. 144 mp4

If you want to do this quickly without installing software, these browser-based editors are highly recommended: Find a tool for a (like Android or Linux)