AI Hook Generator
Turns a topic or script into scroll-stopping hooks for short-form video.
YouTube Shorts Caption Generator
Paste your Shorts script. Get a click-worthy title, description, 3-second hook, and hashtags built for YouTube Shorts retention.
- 100% free
- No signup needed
- Browser-based
Why use Jupitrr's YouTube Shorts caption generator?
Titles that don't get cut off
Every title stays under the 60-character ceiling where YouTube truncates in the mobile feed.
Hashtags with a plan
You get 5 to 8 hashtags with one broad, one niche, and the rest topic-specific, not a wall of tags.
Your words, not invented claims
The model treats your script as the source of truth and pulls the strongest line from your own words.
How it works
Paste your Shorts script
Drop in your voiceover, on-screen text, or rough draft. 15 words is enough for the model to work with.
Pick the style
Educational, storytime, hot take, tutorial, or hype. The same script gets a different title depending on the style.
Copy and paste into YouTube Studio
Title, description, hashtags, and a 3-second on-screen hook line. Paste them straight in.
What is a YouTube Shorts caption generator?
The metadata pass most creators skip, done in seconds.
A YouTube Shorts caption generator writes the metadata for a Short from its script. With Jupitrr's Shorts Caption Generator, you paste your script and get four things you can paste straight into YouTube Studio: a title under 60 characters, a description, 5 to 8 hashtags, and a 3-second on-screen hook line for the video itself, all built from your own words rather than invented claims.
When to reach for it
Educational tips and tutorials
Turn a how-to script into a title that promises the payoff.
Storytime and lesson Shorts
Front-load the takeaway so the title earns the click.
Podcast clips turned into Shorts
Write fresh metadata for every clip you cut from a longer episode.
Cross-posting to Reels and TikTok
Start with YouTube-native metadata, then match each platform with its own generator.
Frequently asked questions
Is it free to use Shorts Caption Generator?
Yes, 100% free. The Shorts Caption Generator is part of the Jupitrr Free Video Toolkit. We want to build quick and easy video tools that help you every step in creating content for your business.
Do I need to download or install anything?
No. The Shorts Caption Generator runs entirely in your browser, so there is nothing to install, download, or sign up for. It works on macOS, Windows, ChromeOS, and Linux as long as you can open the page.
How long should a YouTube Shorts title be?
Under 60 characters. YouTube truncates titles in the mobile feed around there, and the click-worthy lines tend to be even shorter (45 to 55 characters). The tool respects that ceiling so the title does not get cut off mid-thought.
How many hashtags should I use on a YouTube Short?
YouTube counts at most 15 hashtags, but the first 3 are what show in the title bar. The tool returns 5 to 8, with one broad (#shorts), one niche, and the rest topic-specific. More than 8 typically adds little.
What makes a good YouTube Shorts hook?
A hook works when it creates a question the viewer needs the next second to answer. Short, specific, and tied to a payoff inside the first 10 seconds. Never a generic greeting.
Will it match my voice?
Yes. The model uses your script as the source of truth and pulls the strongest line from your own words rather than inventing new claims. Your tone, your facts, your numbers.
How is this different from the Reels Caption Generator?
Shorts metadata is title-first (YouTube ranks heavily on title), while Reels captions are conversational. If you cross-post to Instagram Reels, use the Reels Caption Generator for an Instagram-native caption. For TikTok, use the TikTok Caption Generator.
Can I record the Short itself here?
The Caption Generator writes the metadata. For the video, use the Camera Recorder, or the Teleprompter & Camera Recorder if you want to read a script naturally while filming.
What is Jupitrr AI?
Jupitrr is the AI video editor for coaches and consultants. Plan, script, record, edit, and publish your videos in one place, powered by the Jupitrr AI Video Editor and the Jupitrr Cut Teleprompter app. This free toolkit is a small slice of what the full product can do. When you are ready for subtitles, B-roll, filler-word removal, and one-click publishing across YouTube, TikTok, and Instagram, jump into the full editor.
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