Tags help YouTube understand what your video is about

Tags are short words or phrases you add to your video that tell YouTube's system what your content covers. YouTube uses tags to recommend your video to people searching for those topics, and to group your video with similar content. Adding tags takes less than a minute and happens in the same place where you write your title and description.

You add tags after you upload your video but before you publish it. If your video is already live, you can still add or change tags at any time. Tags work alongside your title and description — they are not a replacement for either one, but they do help YouTube's algorithm understand your content better.

Key Takeaways

  • Tags are added in YouTube Studio on the Details tab, in a field labeled "Tags" below your video description.
  • Each tag can be up to 30 characters long, and you can add up to 500 characters of tags total per video.
  • Use specific tags that match what people actually search for, not generic words or competitor channel names.
  • Your first tag should be your most important one, because YouTube weighs it more heavily than tags that come later.

Where to find the tags field in YouTube Studio

Open YouTube Studio and go to the Content tab on the left side. Find the video you want to tag and click on it. This opens the video details page. Click the Details tab at the top — this is where your title, description, and thumbnail live.

Scroll down past your description field. You will see a box labeled Tags. This is where you type. The field shows you how many characters you have used out of your 500-character limit. If you are editing a video that already has tags, they will appear here separated by commas.

How to write tags that actually work

Think about what someone would type into YouTube's search bar to find a video like yours. If you made a video about fixing a leaky kitchen faucet, people might search "how to fix kitchen faucet" or "leaky faucet repair" or "kitchen sink leak". Those phrases become your tags. Type each tag and press Enter or the comma key to separate them.

Keep tags specific. "Video" or "content" or "YouTube" are too broad and compete with millions of other videos. "Kitchen faucet repair" is better than "plumbing" because it narrows down what you actually made. Do not use competitor channel names as tags — YouTube's rules prohibit this, and it will not help your video rank anyway.

Put your most important tag first. YouTube weighs the first tag more heavily than the ones that follow. If your video is about fixing a leaky faucet and you also mention caulking, put "kitchen faucet repair" first and "caulking" later. You do not need to tag every topic in your video — focus on the main ones.

Tag length and how many tags to use

Each individual tag can be up to 30 characters long. That is enough for most phrases: "how to fix kitchen faucet" is 26 characters. You can add tags until you reach 500 characters total across all your tags. In practice, most creators use between 5 and 15 tags per video.

More tags are not always better. YouTube cares more about whether your tags match what people actually search for than about the total number you use. A video with five specific, accurate tags will perform better than a video with fifteen generic ones. If you run out of ideas for tags, you have probably covered the main topics already.

Checking what tags successful videos in your niche use

Find a video similar to yours that has good viewership. Right-click on the video page and select View page source (or press Ctrl+U on Windows, Command+U on Mac). Press Ctrl+F or Command+F to open the search box and type "keywords". You will see a line that shows the tags that video uses.

This shows you what tags successful creators in your space are using. You can adapt these to fit your specific video. If a popular cooking channel tags their videos "straightforward weeknight dinner" and "30 minute meals", and you made a similar video, those tags might work for you too. Do not copy tags exactly — use them as a starting point and adjust for your actual content.

When to add tags and how to change them later

You can add tags at any point: while your video is uploading, before you publish it, or after it is already live. If you are still editing your video before publishing, add tags in the Details tab before you click Publish. If your video is already published and you want to add or change tags, go back to YouTube Studio, find the video, open Details, and edit the Tags field. Click Save at the bottom right.

Changes to tags take effect when ready, but YouTube may take a few hours to fully re-index your video with the new tags. If you realize you used the wrong tags or want to add more specific ones as your video gains views, you can update them anytime. There is no limit to how many times you can edit tags.

Tags versus hashtags and descriptions

Tags and hashtags are different. Tags are invisible metadata that only YouTube's system sees. Hashtags (which start with #) appear as clickable links in your description and video title, and viewers can see them. You can use both — hashtags in your description for viewers to click, and tags in the Tags field for YouTube's algorithm.

Your description should still explain what your video is about in plain language for viewers. Tags support your description but do not replace it. A viewer reads your title and description to decide whether to watch. YouTube's algorithm reads your tags to decide who to recommend your video to. Both matter, but they serve different purposes.

Frequently Asked Questions

Can I use the same tags on every video I upload?

You can reuse tags across videos if they are genuinely relevant to each video. Do not tag every video with the same generic words just to save time. Each video should have tags that match its actual content. If you make a series of cooking videos, "straightforward recipes" might explore to many of them, but "30 minute pasta" should only tag the pasta video.

What happens if I use tags that do not match my video?

YouTube's system will notice that viewers who click on your video from those tags do not watch it for long. This signals to YouTube that your tags are misleading, and the algorithm will show your video to fewer people over time. Accurate tags that match your content perform better than tags designed to trick the system.

Do tags help with YouTube search results?

Tags help, but your title and description matter more for search ranking. YouTube's algorithm looks at all three, but the title is the strongest signal of what your video is about. Tags work best for helping YouTube recommend your video to people watching related content, not for search results specifically.

Is there a tool to suggest tags for my video?

YouTube Studio does not have a built-in tag suggestion tool. You can use third-party tools like TubeBuddy or VidIQ, which analyze search volume and competition for different tags. These tools are optional — researching tags manually by looking at successful videos in your niche works just as well.