Getting Started with Capsubs

What is Capsubs?

Capsubs is an AI-powered video captioning platform that automatically transcribes your videos and burns professional captions directly onto them. Perfect for social media content, educational videos, podcasts, and more.

Automatic transcription
AI voiceover generation
Multiple caption styles
Fast processing

How It Works

Step 1

Upload Your Video

Go to your Dashboard and click the upload button. Drag and drop your video file or browse to select it. We support MP4, MOV, WebM, MKV and AVI up to 3 minutes long (6 on Basic and Pro) and 500MB (1GB on Basic and Pro).

Step 2

Choose Your Options

Customize how your video will be processed:

  • Captions: Enable or disable burned-in captions
  • AI Voiceover: Replace or add AI-generated narration
  • Voice Selection: Choose from 6 different AI voices
Step 3

Wait for Processing

Our AI will automatically transcribe your video's audio and generate captions. You can see the progress in real-time on your dashboard. Processing time depends on video length.

Step 4

Download Your Video

Once processing is complete, preview your captioned video directly in the browser and download it when you're ready. Your videos are stored securely and available for download anytime.

AI Voiceover Options

Want to add professional narration to your video? Choose from 6 different AI voices:

Alloy

Neutral & balanced

Echo

Clear male voice

Fable

British accent

Onyx

Deep male voice

Nova

Warm female voice

Shimmer

Soft & gentle

Supported Formats

Input Formats

  • MP4 (H.264)
  • MOV (QuickTime)
  • Up to 3 minutes and 500MB on Free, 6 minutes and 1GB on Basic and Pro

Output Format

  • MP4 with burned-in captions
  • High quality encoding
  • Ready for any platform

Tips for Best Results

  • Clear Audio: Videos with clear audio and minimal background noise produce more accurate captions.
  • Steady Speech: Consistent speaking pace helps the AI generate better transcriptions.
  • Preview First: Always preview your video before downloading to make sure everything looks good.

Ready to caption your first video?

Create your free account and start adding captions to your videos today.