Real-Time Translation
Native Twitch Extension

Real-Time Translation
Twitch Extension

StreamTranslate translates your stream live for every viewer — in their own language, simultaneously. The only Twitch extension built for real-time multi-language translation.

Install on Twitch Launch App

How Real-Time Translation Works on Twitch

Most Twitch streamers reach only the fraction of the internet that speaks their language. StreamTranslate breaks that wall. The moment you speak, your audio is transcribed and translated in real-time, with subtitles delivered to viewers through a native Twitch extension panel — no video overlay, no viewer setup required.

The translation pipeline runs entirely in the cloud: speech recognition → neural machine translation → viewer panel delivery. The result is under 2 seconds of latency from your mouth to text on a viewer's screen, in their language.

  • Cloud-based: no CPU usage on your streaming PC
  • Speech-to-text → translate → deliver in under 2 seconds
  • Each viewer picks their own language independently
  • 65 languages supported simultaneously
  • Neural translation quality — not keyword matching

Why a Twitch Extension — Not an OBS Overlay

OBS overlays bake subtitles into the video — one language, visible to every viewer, burned into the stream. A native Twitch extension is fundamentally different:

  • Each viewer chooses their own translation language — not one-size-fits-all
  • Subtitles appear in a panel, not on top of your gameplay
  • Doesn't reduce your stream's visual quality
  • Works even on clips and VODs (with StreamTranslate active)
  • Viewers can toggle subtitles on/off without affecting others

StreamTranslate also offers an OBS browser source overlay if you want subtitles burned into the stream — but the Twitch extension gives viewers the best experience.

Setup: Real-Time Translation on Your Twitch Channel

  • Step 1: Install StreamTranslate from the Twitch Extensions dashboard
  • Step 2: Create your account at streamtranslate.live and connect your Twitch channel
  • Step 3: In StreamTranslate, set your spoken language (the language you stream in)
  • Step 4: Enable the extension on your channel — viewers now see the subtitle panel
  • Step 5: Go live and hit "Go Live" in the StreamTranslate dashboard — translation starts instantly

Languages Supported

StreamTranslate supports 65 input and output languages. Stream in English, Spanish, French, Japanese, Korean, Portuguese, German, or any supported language — and translate to any other. Popular translation pairs:

  • English → Spanish, Portuguese, French, German, Italian
  • English → Japanese, Korean, Chinese (Simplified & Traditional)
  • Spanish → English, Portuguese, French
  • Japanese → English, Korean, Chinese
  • Korean → English, Japanese, Chinese

Who Uses Real-Time Twitch Translation

  • English streamers who want Spanish and Portuguese viewers from Latin America
  • Japanese or Korean streamers expanding into Western markets
  • Esports players competing internationally
  • IRL streamers traveling abroad who pick up local viewers
  • Language learning streamers who want global reach

FAQ

  • Does this work without OBS? Yes. The translation runs independently of your streaming software.
  • Can I translate to multiple languages at once? Yes — on Pro and Unlimited plans, viewers can select from all enabled languages.
  • Will translation slow down my stream? No. All processing is cloud-side. Zero latency added to your stream.
  • Is there a free trial? Yes — Stream Pass ($9.99 one-time) gives you a full session to test before subscribing.

Related Pages

Also stream IRL

Also supports IRL with Moblin and the OBS audio plugin, including home and cloud OBS setups such as IRL Toolkit.

Use an OBS receiver for IRL Pro, Larix Broadcaster, PRISM Live Mobile or TVU Go. Cloud providers may need to install the plugin on your server.

Moblin · Moblin Browser Source · Cloud OBS · IRL Toolkit · OBS Studio · IRL Pro · Larix Broadcaster · PRISM Live Mobile · TVU Go · MediaMTX

IRL setup guide · Desktop setup guide