Twitch Extension
The Only Native Twitch Solution
The Twitch Subtitle Extension
That Actually Works
StreamTranslate is the only Twitch extension that delivers real-time translated subtitles to your viewers natively — right inside the Twitch player. No OBS overlay. No viewer setup. Just subtitles.
What Is the StreamTranslate Twitch Subtitle Extension?
StreamTranslate is a native Twitch extension — installed directly from the Twitch Extensions Marketplace — that shows real-time translated subtitles to your viewers inside the Twitch player. No browser source overlays. No third-party software for viewers to install.
When you go live and activate StreamTranslate, your speech is transcribed and translated in real-time. Viewers click the subtitle icon in the player and choose their language. They read along in Spanish, Japanese, Portuguese, or any of 30+ supported languages — all while you stream normally.
- Installs directly on Twitch — no OBS browser source needed
- Viewers see subtitles inside the native Twitch player panel
- 30+ languages supported with under 2-second latency
- Free to install for streamers and viewers
- Works on Twitch desktop and mobile
How It Works — For Streamers
- Step 1: Install the StreamTranslate extension from the Twitch dashboard
- Step 2: Create your StreamTranslate account at streamtranslate.live
- Step 3: Activate the extension on your channel in the Twitch Extensions manager
- Step 4: Open StreamTranslate, select your spoken language and target translation languages
- Step 5: Hit "Go Live" — your viewers now see a subtitle button in the Twitch player
The entire setup takes under 5 minutes. Once configured, subtitles are on for every stream automatically.
How It Works — For Viewers
Viewers on your channel see a CC/Subtitles button added to the Twitch player by the extension. They click it, choose their language, and subtitles appear instantly in a panel below the video. No account. No download. No configuration. It just works.
- Viewers select their preferred language from a dropdown
- Subtitles appear in real-time as the streamer speaks
- Font size and position are adjustable
- Works on Twitch.tv desktop and the Twitch mobile app
Why StreamTranslate Is the Only Twitch Subtitle Extension
Most "subtitle" solutions for Twitch use OBS browser sources — overlays baked into the stream video. That means subtitles appear in one language for every viewer, with no per-viewer language control. StreamTranslate is different.
Because it runs as a native Twitch extension, each viewer independently chooses their own language. A Spanish viewer and a Japanese viewer on the same stream both get subtitles in their language simultaneously. No other Twitch tool does this.
- Per-viewer language selection — not locked to one language for everyone
- Multiple viewers can watch in different languages at once
- Extension panel doesn't obscure the video like OBS overlays
- No encoding overhead — subtitles are not burned into the video
Supported Languages
StreamTranslate supports 30+ languages including: Spanish, Portuguese, French, German, Italian, Japanese, Korean, Mandarin Chinese, Cantonese, Arabic, Hindi, Russian, Dutch, Polish, Turkish, Swedish, Danish, Norwegian, Vietnamese, Thai, Indonesian, Malay, and more.
Pricing
- Stream Pass — $9.99: One full stream session, all languages, no subscription
- Starter — $14.99/mo: 25 hours/month, single translation language
- Pro — $34.99/mo: 40 hours/month, dual language, priority processing
- Unlimited — $149/mo: Unlimited hours, dual language
See full pricing and plans →
Frequently Asked Questions
- Is the extension free? Yes — installing the extension is free. Streamers need a StreamTranslate account (free tier available). Viewers pay nothing.
- Do viewers need to install anything? No. The extension panel appears automatically on any Twitch channel where the streamer has activated it.
- Does it work on mobile Twitch? Yes — the extension works on the Twitch mobile app for viewers.
- What if I also use OBS overlays? They work side-by-side. The extension panel is separate from any OBS overlay you may have.