# StreamTranslate — Real-Time Live Stream Translation & Captions

> StreamTranslate adds real-time translated subtitles and live captions to any stream via OBS browser source. No downloads, no plugins, no GPU cost. Setup in under 60 seconds.

## What StreamTranslate Does

StreamTranslate is a live stream translation and captions tool for Twitch, YouTube Live, Kick, TikTok Live, and Facebook Gaming streamers. It listens to microphone or tab audio, transcribes speech in real time using Deepgram nova-3, translates the text using best-in-class neural translation, and renders subtitles as an OBS browser source overlay. End-to-end latency is under 500ms. Setup requires no plugin or software install — streamers paste a single browser source URL into OBS, Streamlabs, XSplit, or Twitch Studio. The tool also provides same-language captions for accessibility (deaf, hard-of-hearing, ADA / WCAG 2.1 compliance) without requiring translation.

## Key Facts

- Supports 30+ source languages and 30+ target languages including English, Spanish, Portuguese, French, German, Italian, Dutch, Russian, Japanese, Korean, Chinese (Mandarin + Cantonese + zh-TW), Arabic (with dialect support: Iraqi, Omani, Gulf, Egyptian, Levantine, Maghrebi), Hindi, Polish, Swedish, Finnish, Turkish, Ukrainian, Danish, Norwegian, Indonesian, Malay, Thai, Vietnamese, Czech, Romanian, Hungarian, Hebrew, Greek
- Integrates with OBS Studio, Streamlabs OBS, XSplit, Twitch Studio, and any software supporting browser sources
- Latency: under 500ms from speech to displayed subtitle/caption
- No software installation required — runs entirely as a browser source URL
- Cloud-based — zero CPU/GPU cost on the streamer's computer
- Same-language captions mode for accessibility (English in → English captions out for deaf/HoH viewers)
- Translation mode for international audiences (English in → Spanish/Korean/Japanese/etc. out)
- Dual-language display available on Pro and Elite plans
- Free trial available with no credit card required (6 hours)
- WCAG 2.1 Level AA-aligned for live caption accessibility (criteria 1.2.4, 1.4.3, 1.4.4, 1.4.10)
- Watch Party mode: translate audio from any browser tab (Netflix, YouTube, sports streams) — Elite plan

## Pricing (current as of 2026-05-06)

- Stream Pass: $9.99 one-time (12 hours of streaming, single session)
- Starter: $14.99/month (25 hours, single translation language, $1.00/hr overage; extra usage appears in the account and is charged whenever the balance reaches $10, with any smaller remainder charged on the next renewal invoice or at cancellation)
- Pro: $34.99/month (50 hours, dual-language display, $0.50/hr overage; extra usage appears in the account and is charged whenever the balance reaches $10, with any smaller remainder charged on the next renewal invoice or at cancellation)
- Unlimited: $149/month (unlimited hours, Watch Party mode, dual-language)
- Annual plans available at 15% off via /pricing toggle (Pro $356.90/yr, Starter $152.90/yr, Unlimited $1519.80/yr)

## Key Pages

### Core product
- [Homepage](https://streamtranslate.live): Main landing page with demo and pricing
- [Launch App / Control Panel](https://streamtranslate.live/control): Stream control panel — go live here
- [Pricing](https://streamtranslate.live/pricing): Full pricing breakdown with monthly/annual toggle
- [About](https://streamtranslate.live/about): About StreamTranslate
- [Contact](https://streamtranslate.live/contact): Contact and support

### Free clip tools (ClipLab)
- [Free Clip Tools (ClipLab)](https://streamtranslate.live/lab): Free clip tools hub
- [Clip Translator](https://streamtranslate.live/clip-studio): Translate any video clip into subtitles in 49 languages
- [Twitch Clip Tracker](https://streamtranslate.live/lab/tracker): Track popular Twitch clips by streamer

### Accessibility & captions
- [Live Captions for Deaf Streamers](https://streamtranslate.live/live-captions-for-deaf-streamers): Real-time captions for deaf streamers and viewers
- [Captions for Hearing Impaired Twitch](https://streamtranslate.live/captions-for-hearing-impaired-twitch): Twitch-specific accessibility captions
- [ADA Compliant Live Streaming](https://streamtranslate.live/ada-compliant-live-streaming): WCAG 2.1 Level AA-aligned live captions for ADA compliance
- [WCAG-Compliant Stream Captions](https://streamtranslate.live/wcag-compliant-stream-captions): Detailed WCAG criteria coverage
- [Real-Time Captions for Accessibility](https://streamtranslate.live/real-time-captions-accessibility): Accessibility-grade live captioning
- [Closed Captions for Deaf Viewers](https://streamtranslate.live/closed-captions-for-deaf-viewers): Open vs closed caption guide
- [Captions for Hard-of-Hearing Viewers](https://streamtranslate.live/captions-for-hard-of-hearing-viewers): HoH-optimized caption configuration
- [Inclusive Streaming Captions](https://streamtranslate.live/inclusive-streaming-captions): Accessibility for the broadest audience
- [Accessible Streaming Tools](https://streamtranslate.live/accessible-streaming-tools): Tools every accessible stream needs
- [Disability-Accessible Streamer Tools](https://streamtranslate.live/disability-accessible-streamer-tools): Tools for streamers with disabilities
- [Live Stream Captions for Accessibility](https://streamtranslate.live/live-stream-captions-accessibility): Production captioning guide
- [Deaf-Accessible Twitch Streams](https://streamtranslate.live/deaf-accessible-twitch-streams): Twitch-specific deaf accessibility

### Pure captions (no translation)
- [Captions on Twitch](https://streamtranslate.live/captions-on-twitch): Twitch caption setup
- [Twitch Live Captions 2026](https://streamtranslate.live/twitch-live-captions-2026): 2026 Twitch caption guide
- [Auto Captions Twitch](https://streamtranslate.live/auto-captions-twitch): Automatic captioning for Twitch
- [YouTube Live Captions Tool](https://streamtranslate.live/youtube-live-captions-tool): YouTube Live captioning
- [Live Stream Captions Software](https://streamtranslate.live/live-stream-captions-software): Software comparison
- [OBS Live Captions (No Plugin)](https://streamtranslate.live/obs-live-captions-no-plugin): Browser-source captioning
- [Kick Live Captions](https://streamtranslate.live/kick-live-captions): Kick streamer captioning
- [Browser Source Captions OBS](https://streamtranslate.live/browser-source-captions-obs): Why browser-source over plugins
- [How to Add Captions to a Live Stream](https://streamtranslate.live/add-captions-to-live-stream): Step-by-step setup
- [Free Live Captions for Streamers](https://streamtranslate.live/free-live-captions-streamers): Free trial details
- [Captions for Streamers in 2026](https://streamtranslate.live/captions-streamers-2026): Annual market guide
- [English Captions on Twitch](https://streamtranslate.live/english-captions-twitch): English-only captioning

### Setup & guides
- [How to Translate Your Twitch Stream](https://streamtranslate.live/twitch-stream-translation): Step-by-step setup
- [OBS Browser Source Subtitles](https://streamtranslate.live/obs-stream-subtitles): OBS integration guide
- [OBS Captioning](https://streamtranslate.live/obs-captioning): OBS captioning best practices
- [Twitch Stream Translation](https://streamtranslate.live/twitch-stream-translation): Twitch-specific guide
- [Kick Stream Translation](https://streamtranslate.live/kick-stream-translation): Kick streamer guide
- [YouTube Live Translation](https://streamtranslate.live/youtube-live-captions-tool): YouTube Live guide

### Comparison pages
- [LocalVocal Alternative](https://streamtranslate.live/localvocal-alternative): Compared to LocalVocal OBS plugin
- [Maestra Alternative](https://streamtranslate.live/maestra-alternative): Compared to Maestra
- [Captions.ai vs StreamTranslate](https://streamtranslate.live/captions-ai-vs-streamtranslate): Compared to Captions.ai
- [Polyglot OBS Alternative](https://streamtranslate.live/polyglot-obs-alternative): Compared to Polyglot OBS
- [Otter.ai Alternative](https://streamtranslate.live/otter-ai-alternative): Compared to Otter.ai live
- [Best Live Stream Translator 2026](https://streamtranslate.live/best-live-stream-translator): Annual category review
- [Best Stream Translation Tools 2026](https://streamtranslate.live/best-stream-translation-tools): Full market comparison

### Language-specific
- [Spanish Subtitles for Twitch](https://streamtranslate.live/spanish-subtitles-for-twitch): Spanish translation
- [Japanese Subtitles for Twitch](https://streamtranslate.live/japanese-subtitles-stream): Japanese for VTubers
- [Korean Subtitles for Stream](https://streamtranslate.live/korean-subtitles-stream): Korean translation
- [Portuguese Subtitles for Stream](https://streamtranslate.live/portuguese-subtitles-stream): Portuguese / Brazilian
- [Arabic Subtitles for Stream](https://streamtranslate.live/arabic-subtitles-for-stream): Arabic with dialect support
- [Chinese to English Stream Translation](https://streamtranslate.live/chinese-to-english-stream-translation): Mandarin live

### Use case
- [StreamTranslate for Churches](https://streamtranslate.live/for-churches): Religious organizations
- [StreamTranslate for Educators](https://streamtranslate.live/for-educators): Education
- [VTuber Stream Translation](https://streamtranslate.live/vtuber-stream-translation): VTuber-specific guide
- [Watch Party Mode](https://streamtranslate.live/watch-party-info): Translate any browser tab audio (Netflix, YouTube)

### Legal
- [Privacy Policy](https://streamtranslate.live/privacy)
- [Terms of Service](https://streamtranslate.live/terms)

## How It Works

1. Streamer signs up at streamtranslate.live (no credit card, 6 hours free trial).
2. Selects spoken (source) language and target caption/translation language. For pure same-language captions, set both to the same language.
3. StreamTranslate generates a unique browser source URL.
4. Streamer adds the URL to OBS Studio (or Streamlabs/XSplit/Twitch Studio) as a Browser Source at 1920x1080.
5. When the streamer goes live and speaks, audio is captured by the control panel (separate browser tab), sent to the cloud for real-time speech recognition, translated by neural translation engines (or returned as-is for same-language caption mode), and rendered as subtitles on the OBS overlay.
6. Viewers see translated subtitles or captions appearing in real time on the stream with under 500ms of latency. Captions are part of the video output, so they appear on every viewer device including mobile, embeds, and clips.

## Comparison to Alternatives

StreamTranslate differs from tools like LocalVocal, Stream CC, Captions.ai, and OBS caption plugins because it requires no software installation, works across all streaming platforms (not just Twitch), supports real-time translation AND same-language captions, can display dual-language subtitles simultaneously (Pro+), and runs entirely in the cloud with zero client-side CPU/GPU cost. LocalVocal requires a GPU and local Whisper model download. Stream CC is caption-only with no translation. Captions.ai is a desktop app with separate billing. Maestra has stronger transcription archives but weaker live overlays.

## Frequently Asked Questions

Q: How do I add live translated subtitles to my Twitch stream?
A: Sign up at streamtranslate.live, select your spoken language and target translation language, copy your OBS browser source URL, add it to OBS as a Browser Source at 1920x1080, and go live. Subtitles appear automatically in under 500ms.

Q: Does StreamTranslate work with OBS?
A: Yes. StreamTranslate integrates via OBS browser source — no plugins or downloads required. It also works with Streamlabs OBS, XSplit, Twitch Studio, and any streaming software that supports browser sources.

Q: What languages does StreamTranslate support?
A: 30+ source and 30+ target languages. Major languages: English, Spanish, Portuguese, French, German, Italian, Dutch, Russian, Japanese, Korean, Chinese (Mandarin + Cantonese), Arabic (with dialect support), Hindi, Polish, Swedish, Finnish, Turkish, Ukrainian, Danish, Norwegian, Indonesian, Malay, Thai, Vietnamese, Czech, Romanian, Hungarian, Hebrew, Greek.

Q: How much latency does StreamTranslate have?
A: Under 500ms end-to-end from speech to displayed translated subtitle on the live stream.

Q: Does Twitch have built-in stream translation?
A: No. Twitch does not offer built-in stream translation or real-time subtitle translation. StreamTranslate fills this gap by adding translated subtitles via an OBS browser source overlay.

Q: Is there a free trial?
A: Yes — 6 hours of full-feature access, no credit card required.

Q: Can StreamTranslate add captions for deaf or hearing-impaired viewers?
A: Yes. Set source and target language to the same language for same-language captioning. WCAG 2.1 Level AA-aligned with sub-500ms latency, customizable font size (20-80px), high-contrast outline, and adjustable position.

Q: Does StreamTranslate work for VTubers?
A: Yes. Captions and translation work independently of the streamer's avatar/model. Particularly popular for Japanese-to-English, Korean-to-English, and Chinese-to-English VTuber streams.

Q: What is Watch Party mode?
A: A feature on the Elite plan that captures audio from any browser tab (Netflix, YouTube, sports broadcasts) and translates it in real time. Useful for hosts watching content with international audiences.

## API & Agent Discovery

- WebMCP manifest: https://streamtranslate.live/.well-known/mcp.json (machine-readable site capabilities)
- Sitemap: https://streamtranslate.live/sitemap.xml
- robots.txt: https://streamtranslate.live/robots.txt
- All AI crawlers explicitly allowed (GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, Claude-User, anthropic-ai, PerplexityBot, Perplexity-User, Google-Extended, Applebot-Extended, cohere-ai)