How to Add Captions to Your Livestream Automatically (Free and Paid Options)

Do You Need Captions?

Adding captions to your church livestream is one of the easiest ways to make your services more accessible, and learning how to add captions to your livestream automatically can make a big difference for viewers who rely on them. Whether someone is hard of hearing, watching without sound, or tuning in from a noisy environment, captions help more people engage with the message. The good news is that both free and paid tools allow you to add real-time captions—without overwhelming your volunteer tech team.

This guide breaks down three simple options: one free and automatic through YouTube, one free and flexible through OBS Studio, and one professional paid solution through BoxCast.


Option 1: YouTube Live Automatic Captions (Free)

If your church already streams to YouTube, this is the easiest and fastest way to get automatic captions.

How It Works

YouTube’s built-in live automatic captions use speech recognition to generate captions in real time. Once your livestream begins, viewers can click the “CC” button to enable captions.

Why Churches Like It

  • It’s completely free
  • No extra software or hardware needed
  • Captions are handled directly inside YouTube
  • Simple, hands-off setup for volunteers

When This Is Best

This is ideal for churches that want captions but don’t need them displayed on other livestream platforms or on in-room screens. YouTube captions stay inside the YouTube player—they don’t feed back into your switcher or encoder.


Option 2: OBS Studio + LocalVocal (Whisper Plugin) (Free)

For churches streaming with OBS Studio, you can add a free plugin called LocalVocal, which uses OpenAI Whisper to generate captions right on your streaming computer.

How It Works

LocalVocal listens to your church’s audio and uses Whisper’s speech-to-text engine to create captions. It then sends those captions into OBS as a text source or embeds them into your livestream platform.

Why Churches Like It

  • 100% free
  • Captions work on any platform you stream to
  • Can display captions directly on your video feed
  • Supports multiple languages and translation
  • No recurring fees or subscriptions

Things to Know

  • Requires a moderately powerful computer to run Whisper in real time
  • Initial setup is more technical than YouTube’s built-in captions
  • Once set up, volunteers only need to turn the plugin on before streaming

When This Is Best

Great for churches using OBS that want a free, flexible system with captions available regardless of platform (YouTube, Facebook, Vimeo, church website, etc.).


Option 3: BoxCast Automated Captioning (Paid)

If your church uses BoxCast, their automated captioning system is one of the simplest options for hands-off captions.

How It Works

Certain BoxCast plans include automated live captions. Once enabled on a broadcast, BoxCast generates captions during the livestream and can even support multilingual captioning depending on your plan.

Why Churches Like It

  • Extremely hands-off—great for volunteer teams
  • Integrates directly with your BoxCast dashboard
  • Captions appear immediately on the BoxCast player
  • Great for churches already using BoxCast for encoding and distribution

Things to Know

  • Captioning is only included on select BoxCast plans
  • Captions appear in the BoxCast player, not automatically on YouTube or Facebook
  • This option is ideal for churches already using the BoxCast ecosystem

When This Is Best

Perfect for mid-sized and large churches that prefer a cleaner, integrated solution and want accessibility handled by their streaming provider.


Comparison Table: Automatic Caption Options

OptionCostDifficultyPlatforms SupportedBest For
YouTube Automatic CaptionsFreeEasiestYouTube onlyChurches streaming exclusively on YouTube
OBS + LocalVocal (Whisper)FreeModerateAny platformChurches needing flexible captions everywhere
BoxCast Automated CaptioningPaidEasiest (hands-off)BoxCast platformChurches using BoxCast that want simplicity

Final Thoughts

Adding captions to your livestream doesn’t have to be complicated. Whether you want a simple free solution through YouTube, a more flexible free option using OBS and LocalVocal, or a professional paid system through BoxCast, each of these tools can help make your livestream more accessible and engaging. Start with the option that fits your technical setup and volunteer skill level, and your church can begin captioning services in just a few minutes.


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