Generate captions for a specific video or voiceover overlay using its existing transcript data. For video overlays uses the Whisper transcript; for voiceover overlays uses the stored Resemble AI caption words.
How It Works
Use when user asks to caption/subtitle a specific video or voiceover overlay. Requires overlay_id pointing to a video or voiceover overlay on the timeline.
Specifications
Category
Text & Captions
Execution
async
Credit Cost
Free
Overlay Types
video, voiceover
Tags
captions, ai, transcription
Example Prompts
“caption this video”
“add subtitles to this clip”
“caption the voiceover”
“transcribe this”
Required Parameters
overlay_id (number)
ID of the video or voiceover overlay to caption
Use Cases for Text & Captions
Style subtitles with animated highlights for TikTok and Reels
Position captions in custom layouts for educational content
Create multi-line caption blocks for interview segments
How to Get Started with Caption It
1.Open any project in the 6trim editor or create a new one.
2.Type a prompt in the AI assistant — for example: "caption this video".
3.The Caption It result appears as a video overlay on your timeline. Drag to reposition or resize.
Frequently Asked Questions
Try Caption It Free
Type a prompt or use the toolbar. No download required.