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Free AI Caption Generator
This free caption generator drafts on-screen lines for a YouTube Short or a long video. It does not publish anything. When you want captions on a finished video, use SocialGrovv, watch the cut, and schedule it to YouTube on a paid plan.
Share this page with a teammate — free tools work best when your whole content squad uses the same hook and caption language.
Frequently asked questions
Is this caption generator free?
Yes. It runs in the browser with no signup. Producing and scheduling a video needs a SocialGrovv account.
What are the captions for?
YouTube. Shorts need the hook on screen immediately. Long-form captions should match the spoken names and dates.
Will the captions match my series?
The free tool uses a general tone. A series in SocialGrovv keeps one caption style with the catalog voice.
How do I turn a caption into a video?
Copy a line you can stand behind, then build the Short or long video and approve it before it is scheduled.