This tool builds a ready-to-paste list of YouTube tags from your video topic, niche and any extra keywords you add. Tags help YouTube understand what your video is about and surface it alongside related searches. Keep your most important keyword first, mix short and long-tail tags, and avoid stuffing irrelevant terms — YouTube can penalise misleading tags.
YouTube allows up to 500 characters total. 15-30 well-chosen, relevant tags is usually enough.
Tags are a minor ranking signal compared to titles, thumbnails and watch time, but they still help with misspellings and related-video matching.
Yes, completely free with no sign-up required.