Add a title and description. Including #Shorts in the title or description can help the algorithm identify it, though it is not strictly required if the video is vertical and under 60 seconds. Best Practices for Writing Shorts
Place your primary keywords in the first three lines of the description, as these are the most visible to the algorithm.
Maximum 60 seconds (though some tools allow up to 180 seconds, 60 is the standard for mobile creation). How to Upload an MP4 as a Short Youtube Shorts mp4
These tutorials provide step-by-step instructions on creating, scripting, and optimizing your YouTube Shorts for maximum reach: How To Make YouTube Shorts - The Complete Guide! YouTube · Justin Brown - Primal Video
Put your most important point or hook in the first 7 seconds to prevent viewers from swiping away. Add a title and description
Go to YouTube.com and click Create > Upload video . Drag and drop your MP4 file.
Tap the + icon in the YouTube app and select Upload a video (instead of "Create a Short") to choose your local MP4 file. Maximum 60 seconds (though some tools allow up
YouTube automatically categorizes videos as "Shorts" if they meet these criteria: MP4 or MOV. Aspect Ratio: Vertical 9:16 (portrait) is recommended. Resolution: 1080 x 1920 pixels is standard.