# StreamTranslate ‗ Complete Documentation for AI > StreamTranslate is a real-time live stream translation and captioning platform. It adds translated subtitles to live streams on Twitch, YouTube, Kick, and TikTok via OBS browser source. No plugins, no downloads, setup in under 5 minutes. ## Product Overview StreamTranslate solves the language barrier problem in live streaming. When a streamer speaks English but has viewers who speak Spanish, Japanese, Korean, Arabic, or any of 50+ supported languages, StreamTranslate transcribes their speech in real time, translates it, and displays subtitles as an overlay on the live stream. The entire system runs through a browser source URL ‗ streamers paste it into OBS and go live. ### Technical Architecture StreamTranslate uses a multi-stage pipeline: 1. **Audio Capture**: The browser captures microphone audio from the streamer's computer. 2. **Speech-to-Text**: Audio is streamed to an advanced AI speech recognition engine for real-time transcription. 3. **Translation**: Transcribed text is translated using a tiered translation system. Tier 1 races three free providers simultaneously (multiple translation providers) ‗ first response wins. If all three fail, Tier 2 races paid providers (premium translation providers). 4. **Rendering**: Translated subtitles are rendered on an OBS browser source overlay at 1920x1080. 5. **Latency**: End-to-end latency from speech to displayed subtitle is under 2 seconds. ### Supported Languages StreamTranslate supports transcription and translation for 51 languages. Primary languages with full support include: - Spanish (es) ‗ including Latin American variants - Portuguese (pt) ‗ including Brazilian Portuguese - French (fr) - German (de) - Japanese (ja) - Korean (ko) - Chinese (zh) ‗ Simplified and Traditional - Arabic (ar) ‗ with dialect support for Iraqi (ar-IQ), Gulf (ar-AE), Egyptian (ar-EG), Levantine (ar-LB), Maghrebi (ar-MA), and Omani (ar-OM) - Hindi (hi) - Russian (ru) - Turkish (tr) - Italian (it) ### Streaming Platform Compatibility StreamTranslate works with any streaming platform that supports OBS or browser-source-capable streaming software: - **Twitch** ‗ full support via OBS browser source - **YouTube Live** ‗ full support via OBS browser source - **Kick** ‗ full support via OBS browser source - **TikTok Live** ‗ full support via OBS browser source or TikTok Studio - **Facebook Live** ‗ supported via OBS - Any platform using OBS Studio, Streamlabs, XSplit, or similar software ### Streaming Software Compatibility - OBS Studio (recommended) - Streamlabs Desktop - XSplit Broadcaster - Any software supporting browser sources at 1920x1080 ## Pricing All prices in USD. Free 6-hour trial available with no credit card required. | Plan | Price | Hours | Languages | Features | |------|-------|-------|-----------|----------| | Stream Pass | $9.99 one-time | 24 hours | 1 translation language | Pay-as-you-go, no subscription | | Starter | $14.99/month | 25 hours/month | 1 translation language | Monthly subscription | | Pro | $34.99/month | 50 hours/month | 2 languages (dual display) | Dual-language subtitles | | Unlimited | $149/month | Unlimited | 2 languages (dual display) | No hour caps | ### What Each Plan Includes - **Stream Pass**: Best for trying the service or occasional use. 24 hours of streaming time, one translation language. Timer starts when you generate your OBS link, not when you purchase. - **Starter**: Best for regular streamers. 25 hours per month of real-time transcription and translation. Single translation language. - **Pro**: Best for streamers with diverse international audiences. 50 hours per month, dual-language subtitle display (show two translations simultaneously). - **Unlimited**: Best for full-time streamers. Unlimited streaming hours with dual-language support. ## Setup Guide 1. Visit https://streamtranslate.live/control 2. Enter your email to create an account 3. Select your spoken language (the language you speak on stream) 4. Select the target translation language (what your viewers will see) 5. Click "Go Live" to generate your unique overlay URL 6. In OBS Studio: Sources ◒ Add ◒ Browser Source ◒ paste the URL ◒ set width 1920, height 1080 7. Start streaming ‗ subtitles appear automatically Setup takes under 5 minutes. No software installation required. ## Use Cases ### Twitch Streamers Twitch has no built-in translation feature. StreamTranslate lets Twitch streamers reach international audiences by adding real-time translated subtitles. Especially valuable for IRL streamers, gaming streamers with global followings, and streamers looking to grow in non-English markets. ### YouTube Live Creators YouTube's auto-captions only work for VODs, not live streams. StreamTranslate provides real-time translated captions during YouTube Live broadcasts. ### Esports Teams and Tournaments Esports tournaments often have multilingual audiences. StreamTranslate enables tournament organizers to provide real-time translation of commentary and player communication. ### Churches and Religious Organizations Churches with multilingual congregations use StreamTranslate to provide real-time translation of sermons and services streamed online. ### Educators and Online Teachers Online educators can reach students globally by providing real-time translation of lectures and lessons. ### VTubers VTubers with international fanbases use StreamTranslate to communicate with viewers across language barriers. ## Comparison to Alternatives | Feature | StreamTranslate | Cloud Vocal | Stream CC | OBS Captions Plugin | |---------|----------------|-------------|-----------|-------------------| | Real-time translation | Yes | No (captions only) | No (captions only) | No (captions only) | | No software install | Yes | No (plugin required) | No (extension) | No (plugin required) | | Multi-platform | Yes (all platforms) | OBS only | Twitch only | OBS only | | Dual-language display | Yes (Pro+) | No | No | No | | Languages supported | 50+ | Limited | Limited | Limited | | Setup time | Under 5 minutes | 15-30 minutes | 10-15 minutes | 10-15 minutes | ## Contact - Website: https://streamtranslate.live - Email: support@streamtranslate.live - Live chat: Available on the website ## All Pages - [Homepage](https://streamtranslate.live): Main landing page with interactive demo - [Launch App](https://streamtranslate.live/control): Stream control panel - [Pricing](https://streamtranslate.live/pricing): Pricing plans - [About](https://streamtranslate.live/about): About StreamTranslate - [Contact](https://streamtranslate.live/contact): Contact and support - [Privacy Policy](https://streamtranslate.live/privacy): Privacy policy - [Terms of Service](https://streamtranslate.live/terms): Terms of service - [How to Stream in Multiple Languages](https://streamtranslate.live/how-to-stream-in-multiple-languages): Complete setup guide - [OBS Browser Source Subtitles](https://streamtranslate.live/obs-browser-source-subtitles): OBS-specific guide - [OBS Subtitle Overlay](https://streamtranslate.live/obs-subtitle-overlay): Overlay setup - [Twitch Stream Translation](https://streamtranslate.live/twitch-stream-translation): Twitch guide - [Kick Stream Translation](https://streamtranslate.live/kick-stream-translation): Kick guide - [Twitch Spanish Subtitles](https://streamtranslate.live/twitch-spanish-subtitles): Spanish on Twitch - [Twitch Japanese Subtitles](https://streamtranslate.live/twitch-japanese-subtitles): Japanese on Twitch - [Twitch Korean Subtitles](https://streamtranslate.live/twitch-korean-subtitles): Korean on Twitch - [Twitch Arabic Subtitles](https://streamtranslate.live/twitch-arabic-subtitles): Arabic on Twitch - [Twitch Chinese Subtitles](https://streamtranslate.live/twitch-chinese-subtitles): Chinese on Twitch - [Twitch French Subtitles](https://streamtranslate.live/twitch-french-subtitles): French on Twitch - [Twitch German Subtitles](https://streamtranslate.live/twitch-german-subtitles): German on Twitch - [Twitch Hindi Subtitles](https://streamtranslate.live/twitch-hindi-subtitles): Hindi on Twitch - [Twitch Portuguese Subtitles](https://streamtranslate.live/twitch-portuguese-subtitles): Portuguese on Twitch - [Twitch Russian Subtitles](https://streamtranslate.live/twitch-russian-subtitles): Russian on Twitch - [Best Stream Translation Tools](https://streamtranslate.live/best-stream-translation-tools): 2026 comparison - [Best OBS Subtitle Plugins](https://streamtranslate.live/best-obs-subtitle-plugins): 2026 comparison - [Best Real-Time Translation Services](https://streamtranslate.live/best-real-time-translation-services): 2026 comparison - [StreamTranslate for Twitch Streamers](https://streamtranslate.live/for-twitch-streamers): Twitch use case - [StreamTranslate for YouTube Creators](https://streamtranslate.live/for-youtube-creators): YouTube use case - [StreamTranslate for Kick Streamers](https://streamtranslate.live/for-kick-streamers): Kick use case - [StreamTranslate for Churches](https://streamtranslate.live/for-churches): Church use case - [StreamTranslate for Educators](https://streamtranslate.live/for-educators): Education use case - [StreamTranslate for Esports Teams](https://streamtranslate.live/for-esports-teams): Esports use case - [StreamTranslate for VTubers](https://streamtranslate.live/for-vtubers): VTuber use case - [StreamTranslate + OBS Integration](https://streamtranslate.live/integrations-obs): OBS integration - [StreamTranslate + Streamlabs Integration](https://streamtranslate.live/integrations-streamlabs): Streamlabs integration - [StreamTranslate + Twitch Integration](https://streamtranslate.live/integrations-twitch): Twitch integration - [What is Real-Time Translation?](https://streamtranslate.live/glossary-real-time-translation): Glossary - [What is Speech-to-Text?](https://streamtranslate.live/glossary-speech-to-text): Glossary - [What is an OBS Browser Source?](https://streamtranslate.live/glossary-obs-browser-source): Glossary - [What are Closed Captions?](https://streamtranslate.live/glossary-closed-captions): Glossary - [Stream Translation for Japan](https://streamtranslate.live/stream-translation-japan): Japan market - [Stream Translation for Brazil](https://streamtranslate.live/stream-translation-brazil): Brazil market - [Stream Translation for Korea](https://streamtranslate.live/stream-translation-korea): Korea market - [Stream Translation for Germany](https://streamtranslate.live/stream-translation-germany): Germany market