Public Video
The name is self-explanatory. When you make a video public, everyone can see it, find it through YouTube search and share it with their friends on social media.Private videos
Private videos also do not appear in YouTube search, video recommendation, and uploader’s video tab section. Subscribers also don’t get a notification, for private videos. Only the uploader and the Google Accounts he specified, can see a private video. If you share your private video with your friends, and they shared it with their buddies, then only your friends will be able to see the video. The only way to see a private video is by requesting the uploader.Unlisted Video
Unlisted videos sit between public and private. When you make a video unlisted, it won’t appear in --  search results, your video tab or in suggestions. Your subscriber will also not get any notification if the new video you uploaded was unlisted. However, anyone with a video’s link can watch the unlisted video. If you share your unlisted video with your friends, and they decided to share it with their buddies, then everyone involved can see the video. Another important thing is, YouTube treats unlisted videos like the public videos, i.e. uploader cannot use copyright video or audio, and if any user flags the video for inappropriate content, YouTube team will review it under 24 hours, just like they do for public videos.Comparing YouTube's Public, Private and Unlisted Videos
| Public | Unlisted | Private | |
| Visibility | Everyone | Anyone with the video link | Only the Google accounts you have select |
| Appears in YouTube Search | Yes | No (unless someone adds it to a public playlist.) | No |
| Appears in Video Tab | Yes | No | No |
| Subscribers get notification | Yes | No | No |
| Who can share it | Everyone | Everyone | Users you select |
Updated: October 15, 2021