Remotion Captions & Subtitles — AI-Powered Video Subtitles

Caption Format

All captions use the Caption type:

import type { Caption } from "@remotion/captions";

type Caption = {
  text: string;
  startMs: number;
  endMs: number;
  timestampMs: number | null;
  confidence: number | null;
};

Generating Captions

Transcribe video/audio files to generate captions with word-level timestamps. Supports multiple transcription services.

Displaying Captions

Render captions as styled overlays on your video compositions, with full control over:

• Font, size, color, background
• Word-by-word or line-by-line display
• Animated highlighting of current word
• Position (top, bottom, center)

FAQ

Q: What caption format does Remotion use? A: Remotion uses a JSON-based Caption type with text, startMs, endMs, timestampMs, and confidence fields for word-level timing.

Q: Can I auto-generate subtitles from audio? A: Yes. The skill includes transcription rules for generating captions from audio/video files with word-level timestamps.