How hashtags help a short video
On YouTube Shorts, TikTok and Instagram Reels, what people watch drives most of the reach, but hashtags still help in two ways: they tell the platform what the video is about, and they put it on hashtag and search pages where people browse a topic. That only works if the tags match the video. A science Short tagged #fyp #viral #trending competes with millions of unrelated videos; tagged #BlackHole #Astronomy it reaches people who want exactly that.
The mix this tool gives you
| Group | Example (a Short about black holes) | Why |
|---|---|---|
| Specific | #BlackHole #EventHorizon | Smaller tags where your video can stand out |
| Niche | #Space #Astronomy #ScienceFacts | The audience that follows the topic |
| Your language | #سائنس #विज्ञान | Viewers who search in Urdu, Hindi or Arabic |
| Platform | #Shorts or #Reels | Tells the platform the format |
You get 15 suggestions, best first. You don't need all of them.
How many hashtags to use
- YouTube Shorts: 3 to 5 in the description. YouTube can show the first three next to the title, so put the most specific first. YouTube ignores every hashtag on a video that has more than 60, and a few relevant ones work better anyway.
- TikTok: 3 to 6 in the caption, mostly specific and niche tags.
- Instagram Reels: 3 to 8. Instagram allows more, but a few relevant tags read better than a block of thirty.
Always skip any suggestion that doesn't fit your video. A tag that misleads viewers hurts more than it helps.
Hashtags in Urdu, Hindi and Arabic
Many viewers search in their own script. Pick Urdu, Hindi or Arabic and the list includes tags in that script next to the English ones people also use, so you reach both audiences.
Make the video, then post it everywhere
If you're starting from an idea, ContentRoof turns one sentence into a finished Short: script, natural voice, word-by-word captions and animated line drawings, with no watermark. Its post kit then writes the title, description, tags, hashtags and captions for TikTok and Instagram from the same script, and you can connect your accounts to post or schedule (rolling out platform by platform).
Questions
Is the hashtag generator free?
Yes, free and without sign-up, with a fair-use limit per hour.
Should I use #Shorts on YouTube Shorts?
It does no harm and tells viewers the format, but YouTube recognises Shorts by their vertical shape and length, so it isn't required. Specific topic tags matter more.
Do hashtags work in Urdu and Hindi?
Yes. All three platforms support hashtags in Urdu, Hindi and Arabic script. Choose the language and you get tags in that script along with English ones.
How many hashtags should I use on TikTok?
A few relevant ones, usually 3 to 6. Pick the specific and niche tags from the list rather than generic ones like #fyp.
Updated 2026-10-28