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OBS Tools · 2026

Best OBS Plugins for Live Subtitles & Translation

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Updated March 2026 · 8 min read

OBS doesn't have built-in subtitle or translation features, but the right plugin (or browser source) can add real-time captioning and multi-language translation to any stream. Here's every option worth considering in 2026.

OBS Subtitle & Translation Tools

#1 Best Overall (Browser Source)
StreamTranslate Editor's Pick
Not technically an OBS plugin — it's better. StreamTranslate works as a browser source URL. Add it to your OBS scene and instantly get real-time translated subtitles. No plugin to install, no updates to manage, no GPU required. 28+ languages, sub-2-second latency.
  • No plugin install — just paste a URL
  • 10+ language translation (not just captions)
  • Works on any OBS version, any OS
  • Sub-2-second latency
  • Customizable subtitle appearance
💰 From $9.99/month · Setup guide
#2 Best Free Plugin
LocalVocal
Open-source OBS plugin using OpenAI Whisper AI running locally on your GPU. Best free option for English captions. Translation exists but accuracy doesn't match cloud services. Requires RTX 3060+ for smooth performance.
  • Free and open source
  • Runs locally — no data leaves your PC
  • Requires decent GPU (RTX 3060+ recommended)
  • English captions are solid; translation is inconsistent
💰 Free · OBS Plugin Marketplace
#3
Polyglot OBS Plugin
OBS plugin that uses Google Cloud or DeepL APIs for translation. Good accuracy via cloud APIs. Requires setting up your own API keys and managing per-minute costs. More technical than StreamTranslate.
  • Good translation quality via Google/DeepL
  • API key setup required
  • Pay-per-use costs (can get expensive on long streams)
💰 Free plugin + API costs
#4
OBS Closed Captions Plugin
Simple plugin for sending captions via Twitch, YouTube, X, and TikTok's built-in caption channel. Viewers must enable captions in Twitch's player settings. Not visible as an overlay — captions appear in the Twitch player's CC track. English only.
💰 Free
#5
obs-websocket + Custom Scripts
For developers: use obs-websocket with a custom speech-to-text pipeline to create your own subtitle overlay. Maximum customization but requires serious coding skills. Not recommended for non-developers.
💰 Free (development time not included)

Plugin vs Browser Source: Which Approach?

For most streamers, the browser source approach wins. StreamTranslate gives you translation + captions with zero technical setup. If you specifically need offline/local processing and have a powerful GPU, LocalVocal requires technical OBS configuration and has no translation support.

Frequently Asked Questions

What is the best OBS plugin for subtitles?

For captions only (English): LocalVocal requires technical OBS configuration and has no translation support. For subtitles + translation: StreamTranslate is the best option — it works as a browser source (no plugin install needed) and translates to 28+ languages.

Do I need to install a plugin for OBS subtitles?

Not necessarily. StreamTranslate works as a browser source URL — no plugin installation. Just add a browser source to your OBS scene and paste the URL. LocalVocal and Polyglot require plugin installation.

Can OBS translate my stream to other languages?

OBS doesn't have built-in translation. You need a tool like StreamTranslate (browser source) or Polyglot (plugin) to add real-time translation. StreamTranslate supports 28+ languages with the simplest setup.

Related Guides

Try StreamTranslate Free

Add real-time translated subtitles to your stream in under 60 seconds. No plugin install, no downloads. Just paste one URL into OBS.

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