Ghostpen turns your video into an Instagram caption built for the platform — a hook that earns attention, depth that earns saves, and a close that earns follows. All in your voice.
Try it Free →Illustrative workflow example
Source video
“My Morning Routine — Workspace Setup for Deep Work”
14-minute walkthrough of a creator's workspace: monitor placement, ambient sound setup, morning system for getting into flow within 15 minutes of sitting down.
Generated Instagram caption
The setup that made me 40% more focused — and it wasn't the monitor.
Hook leads with the counter-intuitive reveal. Caption expands on the ambient sound system — the most shareable element. Close invites saves and comments organically.
Illustrative example. Actual output varies based on video content and Voice DNA™ profile.
Any format — YouTube video, screen recording, phone video, webinar clip. Ghostpen processes the source and extracts the key idea that will translate to the Instagram surface.
Instagram captions don't describe the video — they deepen it. Ghostpen finds the most compelling statement, insight, or question in your video and builds the caption around it: hook, depth, CTA.
Your Instagram voice is specific — the tone, the hooks you use, whether you use emoji and how, the way you close. Voice DNA™ models your Instagram surface profile from your existing posts and generates captions that match it, not a generic social media template.
Captions earn engagement before the "more" button or miss it entirely. Content Score™ evaluates Hook Strength as the primary dimension. Target 75+ before posting. The score shows you why the hook works or what to change.
Only if the tool doesn't know your voice. Voice DNA™ builds a surface profile specific to your Instagram presence — not a template of what Instagram captions “should” sound like. It knows whether you use lists or paragraphs, whether you ask questions or make declarations, whether you use hashtags inline or at the end. Those details come from your Voice DNA™ profile. Not from a generic prompt.
The caption should be indistinguishable from one you wrote yourself — because it was written using everything that defines how you write.
Content Score™ — Hook Strength weighted for Instagram
Instagram captions need to earn the tap-through before the “more” button. Content Score™ evaluates Hook Strength as the primary dimension for Instagram — giving you a score and the specific feedback before you post. Target 75+ to ensure the opening line does its job.
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