Hidden keywords on a video, capped at 500 characters in total. Viewers do not see them on the watch page.
Also called: video tags, keyword tags
Tags are metadata the uploader sets in YouTube Studio. They do not appear next to the title. They help YouTube understand the video when the title and description are vague, and they still show up in some older search and suggest paths.
YouTube counts every character across every tag, including commas, toward a 500-character cap. Long tags waste the budget. Repeated tags waste it twice.
A tag extractor asks YouTube for the public metadata on a video and lists the tags. That is useful when you want to see how a competitor named a video, or when you are checking your own upload after the fact.
Tags are not hashtags. Hashtags are visible words in the title or description that start with #. A hashtag extractor counts those. A tag extractor counts the hidden list.
Hidden keywords on a video, capped at 500 characters in total. Viewers do not see them on the watch page.
Tags are metadata the uploader sets in YouTube Studio. They do not appear next to the title. They help YouTube understand the video when the title and description are vague, and they still show up in some older search and suggest paths.
Start with tag-extractor, hashtag-extractor.