Titles, Captions and Hashtags for Short Videos

For a short video, the title or caption should say what the video is about in the words people search, and the hashtags should be 1 to 5 specific tags that describe it. They won’t make a weak video work, because in a feed people decide from the video itself. But they help the platform understand your topic, show you in search, and set the right expectation. The rules also differ: Instagram allows up to 5 hashtags, YouTube ignores all hashtags on a video with more than 60, and TikTok warns against stuffing keywords.

What each piece of text does

There are four places to put words on a short video. They do different jobs.

The on-screen text does most of the work in the feed. The title, caption and hashtags matter most for search, for the video’s page, and for helping the platform understand what kind of viewer might like it. Write the hook first, then write metadata that matches it.

For subtitles, see how to add captions to videos automatically.

The one rule for all three platforms

Write the phrase a real person would search, early, in plain words.

People don’t search “you won’t believe this hack.” They search “how to remove a stripped screw.” So a title that uses that phrase can be found. A title that’s all mystery can’t.

How to find the phrase in two minutes:

1. Type your topic into the YouTube search bar and the TikTok search bar.
2. Read the autocomplete suggestions. Those are real searches.
3. Pick the one that matches your video exactly.
4. Use it near the start of the title or first caption line.

You can still add curiosity after the keyword: “How to remove a stripped screw (the rubber band trick).”

Before and after, across a few niches:

Notice what the “after” versions have in common. Each one names the topic, a specific detail (20 seconds, 10 km, 5 apps) and, where it helps, who it’s for. A searcher can tell in one glance that the video answers their question, and a viewer in the feed knows what they’ll get if they keep watching. Specific numbers also make a promise you can check, which helps people trust that the video isn’t clickbait.

When the title doesn’t need a keyword

Some videos aren’t searchable: a joke, a story, a reaction. For those, the title’s job is to set up the video without spoiling it. Name the situation and leave out the punchline: “My landlord’s response to the leaking ceiling.” Keep at least one plain word about the topic so the platform still knows what it is.

YouTube Shorts: titles and hashtags

YouTube Shorts have a title of up to 100 characters and a description. Hashtags can go in either.

What YouTube’s own rules say:

• Up to 3 hashtags that YouTube considers most engaging can appear by your video title. All of them still show in the description.
• More than 60 hashtags and YouTube ignores every hashtag on the video. Over-tagging can also get a video removed from search.
• Hashtags must relate to the video. Misleading hashtags, or hashtags that harass, contain hate speech or are sexual, break the policy.
• No spaces inside a hashtag: #TwoWords, not #Two Words.

Title templates that work for Shorts:

• How-to: “How to [result] in [time]” → “How to peel garlic in 5 seconds”
• Mistake: “[Common thing] you’re doing wrong” → “The way you’re storing bread is wrong”
• Test: “I tried [thing] for [time]” → “I tried waking up at 5 a.m. for 30 days”
• Comparison: “[A] vs [B]: [the answer]” → “Air fryer vs oven fries: one clear winner”

Keep the important words in the first 40 or so characters, since long titles get cut off on phone screens. For long videos, the free YouTube title generator, description generator and tag generator can draft options. For more on Shorts, read how to get more views on YouTube Shorts.

TikTok: captions and keywords

TikTok’s Creator Academy says Search values relevance over views and engagement, and tells creators to use relevant keywords in the video, subtitles and captions. It also says covers and titles should show the topic clearly, and warns that irrelevant text stacking will hurt your video traffic.

So on TikTok, keywords live in three places at once:

1. Your speech. Say the topic in the first few seconds: “Here’s how I meal prep for the week on $40.”
2. On-screen text. The same phrase in the hook text.
3. The caption. Open with a plain sentence, then 2-4 hashtags.

A good TikTok caption:

Meal prep for the week on $40, five lunches, no reheating needed. #mealprep #budgetmeals #lunchideas

A weak one:

omg 😭😭 #fyp #foryou #viral #trending #foryoupage

The first tells TikTok and searchers exactly what the video is. The second says nothing. TikTok’s caption limit has changed several times, so check the current maximum in the app; you rarely need more than two sentences anyway.

Instagram Reels: captions and the 5-hashtag limit

Instagram’s help center now says you can use up to 5 hashtags on a post. If you add more than 5 tags to a single photo or video, Instagram says your comment won’t post. Older advice to use 30 hashtags is out of date.

Instagram’s creator tips also say to include relevant keywords in your content, caption, bio and hashtags, so people can find you through search.

A Reel caption that does both:

3 stretches for lower back pain after sitting all day. Save this for your next work break. #backpain #deskstretches #mobility

Notes for Instagram:

• First line matters most. Only the start of the caption shows before “more.”
• A soft call to action is fine (“save this,” “send this to a friend who sits all day”). Instagram’s ranking explanation lists the likelihood of a reel being reshared among its most important predictions.
• Don’t post with another app’s watermark. Instagram says it’s less likely to recommend content with noticeable watermarks.

How to choose hashtags

Use 1 to 5 hashtags. Pick them in layers:

Skip:

• Generic tags like #fyp, #viral, #trending, #explore. None of the platforms say they help reach.
• Unrelated popular tags. YouTube’s policy bans misleading hashtags, and TikTok says irrelevant keywords hurt.
• The same block on every post. Choose for each video.

The free hashtag generator gives starting points; always delete the ones that don’t match your video.

Mistakes that cost views

• Title promises something the video doesn’t deliver. Viewers swipe away when they realize, which hurts the numbers that matter.
• Mystery-only titles (“This changed everything”) that no one would ever search.
• Hook text and title say different things. It confuses viewers and the platform.
• Keyword stuffing: “workout workout gym fitness exercise home workout fit.” Write a sentence instead.
• Copying one caption to all three platforms without checking the rules. A caption with 10 hashtags will fail on Instagram.

If you cross-post clips, Short.now generates a title, description and hashtags for each clip from its transcript, which gives you a draft to edit per platform rather than a blank box.

What’s next

Once your videos have titles and captions that fit, you need to know which ones worked and why. Next, learn how to read your short-form analytics: retention, swipe-away rate and shares.