Free template · Social

Captions

Word-by-word captions in the safe zone above platform UI. Pass Whisper-style line and word start/end timestamps for exact sync; text-only lines remain supported with even timing.

Change design

Aspect ratio

What's included

Everything needed to render

Background video Your design tokens Remotion component Editable JSON spec

Template props

Inputs

lineslist of { text, start, end, words }Required

JSON spec

Copy and customize

This exact spec drives the preview. Replace media paths and props with your own.

{
  "theme": "<your-brand-tokens>",
  "version": 1,
  "format": "square",
  "fps": 60,
  "durationSec": 7,
  "source": {
    "type": "video",
    "src": "your-footage.mp4"
  },
  "sound": {
    "enabled": true,
    "volume": 1,
    "sounds": {}
  },
  "overlays": [
    {
      "template": "caption-classic",
      "region": "caption-zone",
      "time": {},
      "props": {
        "lines": [
          {
            "text": "Stop editing captions by hand",
            "start": 0,
            "end": 2.2,
            "words": [
              {
                "text": "Stop",
                "start": 0,
                "end": 0.38
              },
              {
                "text": "editing",
                "start": 0.38,
                "end": 0.88
              },
              {
                "text": "captions",
                "start": 0.88,
                "end": 1.5
              },
              {
                "text": "by",
                "start": 1.5,
                "end": 1.72
              },
              {
                "text": "hand",
                "start": 1.72,
                "end": 2.2
              }
            ]
          },
          {
            "text": "Your agent does it in seconds",
            "start": 2.2,
            "end": 4.6
          },
          {
            "text": "And it already knows your brand",
            "start": 4.6,
            "end": 7
          }
        ]
      }
    }
  ]
}