Give YouTube the right words for your video

There is no required number. Most creators land somewhere between 10 and 20 relevant tags, which comfortably fits YouTube's 500-character budget. Relevance matters more than count — padding the field with loosely related terms does nothing for you, and YouTube's own guidance warns against stuffing tags with terms that do not describe the video.

They are a minor signal, and it is worth being honest about that. YouTube has said tags play a limited role in discovery and are mainly useful when your topic is commonly misspelled. Your title, thumbnail, first 30 seconds, and description do far more work. Fill the tag field properly, then spend your time on the things that move the numbers.

500 characters total across all tags on a video, including the commas that separate them. Long-tail phrases eat that budget fast, so a set of 12 to 18 tags is usually the practical ceiling. The sets generated here are built to stay inside that limit.

Only if people already search for your channel by name. A branded tag spends characters from a fixed 500-character budget and does not create demand that is not there. If your channel name is also a common phrase, skip it — you will be competing with unrelated results anyway.

Open YouTube Studio, go to Content, click the video, then Details, then Show more. The Tags field sits in that expanded section. For videos you have not uploaded yet, you can also set a default tag set under Settings, then Upload defaults.

No. Tags live in a private metadata field that viewers never see and cap at 500 characters. Hashtags are public, clickable links you put in the title or description that lead to a hashtag page. They are separate fields with separate rules, and filling one does not fill the other.

The same field and the same 500-character budget apply — Shorts have no separate tag system. Use a handful of tags that name the topic precisely, and skip #shorts as a tag: hashtags and tags are different fields, and YouTube detects a Short from its length and aspect ratio, not from metadata. In practice tags matter even less on Shorts, where the feed is driven by watch-through.

Yes — tags are not visible in the YouTube interface, but they are present in the page source, which is how tag extractors read them. That gives you a competitor's vocabulary, not their results. Treat an extracted list as research input, not a list to copy wholesale.