If you've ever sat staring at the YouTube upload screen wondering whether tags and hashtags are the same thing, you're not alone. They sound similar, they both involve keywords, and they both supposedly help your video get found. But they're actually two different features that work in different ways. Let's clear it up once and for all.
The Short Answer
Tags are private keywords you add in a hidden field to help YouTube understand your video's topic. Viewers never see them. Hashtags are public, clickable keywords (starting with #) that appear on your video page and lead to a feed of other videos using the same hashtag. One is behind the scenes; the other is out in the open.
What Are YouTube Tags?
Tags are descriptive keywords you enter in the "Tags" field when uploading (found under advanced settings). They're invisible to viewers and exist purely to give YouTube extra context about your content — what it's about, what topics it covers, and common variations or misspellings of your main keyword.
Tags aren't a huge ranking factor anymore, but they still help in two ways: they catch keyword variations people might search, and they help YouTube associate your video with related content. They're especially useful for newer channels and niche topics where every bit of context helps.
What Are YouTube Hashtags?
Hashtags are public keywords that start with the # symbol. You add them in your video description (or title), and the first three appear as blue clickable links above your video title. When a viewer clicks one, they're taken to a feed of other videos using that same hashtag.
Because they're visible and clickable, hashtags help with discovery and categorization. They signal trending topics and let viewers explore related content. But YouTube recommends using only a few — 3 to 5 is the sweet spot.
Side-by-Side Comparison
| Feature | Tags | Hashtags |
|---|---|---|
| Visible to viewers? | No — hidden | Yes — public & clickable |
| Where you add them | Tags field (advanced settings) | Description or title |
| Start with #? | No | Yes |
| Main purpose | Give YouTube context | Discovery & categorization |
| How many to use | 15-30 | 3-5 |
| Clickable? | No | Yes |
Should You Use Both?
Yes. They're not competitors — they do different jobs, so using both gives you the best coverage. Tags quietly help YouTube understand and categorize your video behind the scenes, while hashtags give viewers a visible way to discover and explore your content.
A simple approach for every video: add 15-25 relevant tags in the tags field, and place 3-5 relevant hashtags in your description. Together they cover both the "help the algorithm understand me" job and the "help viewers find me" job.
💡 Tip: Your first hashtag is the most important one because it shows above your title. Make it your most relevant, specific keyword — not a generic one like #youtube.
Mistakes to Avoid
Both features have rules, and breaking them can hurt you. Avoid these common mistakes:
- Using too many hashtags. If you add more than 15 hashtags, YouTube ignores ALL of them. Stick to 3-5.
- Using misleading tags or hashtags. Adding popular-but-unrelated keywords violates YouTube policy and can get your video removed.
- Stuffing the tags field with dozens of weak tags. Relevance beats volume — a focused set of accurate tags works better.
- Generic first hashtag. Don't waste your most visible hashtag on something vague. Make it specific.
- Ignoring one or the other. They serve different purposes — using only tags or only hashtags leaves value on the table.
So there it is: tags are your private context signals, hashtags are your public discovery links. They're different tools for different jobs, and the smartest move is to use both correctly on every video. Want to go deeper on the bigger picture? Read our complete YouTube SEO guide next.