How to write captions and hashtags for short videos
Quick answer: To write captions and hashtags for short videos, paste your script or idea, choose the platform and tone, pick a hook and caption and copy with hashtags.
- Paste your script or idea. A few sentences is enough; the full script gives the best keywords.
- Choose the platform and tone. TikTok, Instagram Reels, YouTube Shorts or all three.
- Pick a hook and caption. Use Shuffle for more options.
- Copy with hashtags. One click copies the caption with its hashtags.
How many hashtags should I use?
Fewer and more relevant beats more. Instagram recommends 3–5 for Reels, TikTok works well with 3–6, and YouTube shows the first 3 above Shorts titles. Mix a couple of niche tags with one broad tag.
Why keywords matter now
TikTok, Instagram and YouTube are used as search engines. Saying your main keyword in the first line of the caption and in the title helps your video show up when people search, not only in feeds.
Frequently asked questions
Is this AI?
It's a fast rule-based generator that pulls keywords from your own script and fits them into proven caption patterns, so it works instantly and keeps your words.
Do hashtags still work on TikTok and Instagram?
Yes, mainly to tell the app what your video is about. Relevant niche tags help more than huge generic ones like #viral.
What's the caption length limit?
TikTok allows up to 4,000 characters, Instagram 2,200, and YouTube Shorts titles 100. The tool counts them for you.