Hashtags are a small but meaningful discoverability signal on YouTube. SEOforTube generates 25 relevance-ranked hashtags for every topic.
Relevance Over Volume
Rather than stuffing generic tags, SEOforTube ranks hashtags by how closely they match your specific topic \u2014 helping YouTube correctly categorize your video.
Where to Use Them
Add your top 3-5 hashtags directly in your title or description for maximum visibility, and use the rest within your description body.