All Languages StreamTranslate Supports

Translate your live stream voice into any of these 28+ languages in real time. Each language card links to a dedicated guide with setup tips, viewer audience data, and platform-specific notes.

Top Streaming Languages

🇪🇸SpanishEnglish → Spanish stream 🇧🇷Portuguese (Brazil)For Brazilian audiences 🇯🇵JapaneseFor Japanese viewers 🇰🇷KoreanFor Korean viewers 🇨🇳Chinese (Mandarin)Simplified Chinese subtitles 🇫🇷FrenchFor French audiences 🇩🇪GermanFor German viewers 🇸🇦ArabicRTL subtitles supported 🇮🇳HindiFor Indian viewers 🇷🇺RussianFor Russian-speaking audiences

European Languages

🇮🇹Italian 🇳🇱Dutch 🇹🇷Turkish 🇵🇱Polish 🇺🇦Ukrainian 🇸🇪Swedish 🇩🇰Danish 🇫🇮Finnish 🇳🇴Norwegian 🇷🇴Romanian 🇨🇿Czech 🇭🇺Hungarian 🇧🇬Bulgarian 🇸🇰Slovak 🇬🇷Greek

Asian Languages

🇮🇩Indonesian 🇻🇳Vietnamese 🇹🇭Thai

Live Translation Capability

Language	Speech-to-Text	Translation Direction	RTL Support
English ↔ Spanish	Yes	Bidirectional	—
English ↔ Portuguese	Yes	Bidirectional	—
English ↔ Japanese	Yes	Bidirectional	—
English ↔ Korean	Yes	Bidirectional	—
English ↔ German	Yes	Bidirectional	—
English ↔ French	Yes	Bidirectional	—
English ↔ Arabic	Yes	Bidirectional	Yes
English ↔ Hindi	Yes	Bidirectional	—
English ↔ Chinese	Yes	Bidirectional	—
English ↔ Russian	Yes	Bidirectional	—

Pick your language. Start streaming.

6-hour free trial. No credit card. Switch languages anytime from the control panel.

Open Control Panel

Language-pair Pages

Specific source-to-target translation guides for the most-streamed pairs.

Korean → English Japanese → English Spanish → English English → Spanish Chinese → English German → English French → English Portuguese → English Russian → English English → Japanese

→ Full reference: all 28+ supported languages with quality benchmarks

Which language should you add to your stream?

Most streamers think the answer is Spanish — and for English-speaking streamers it usually is, because Spanish is the second-most-spoken language on Twitch globally. But the right answer depends on what game you stream, what time you stream, and where your existing audience is from.

For FPS and competitive games (Valorant, CS2, Apex), Spanish, Portuguese (Brazilian), and Korean dominate non-English viewership. For MMORPGs (FFXIV, WoW, Throne & Liberty), Japanese, Korean, and German viewers cluster heavily. For variety / Just Chatting streams, French and German bring the highest paid-conversion rates because of established subscription habits in those regions.

If you stream during US prime time (7-11 PM Eastern), your highest-impact translation is Spanish or Portuguese — Latin America is awake and underserved. If you stream early morning Eastern, German, French, and Polish viewers are mid-afternoon and actively browsing.

What "tier" means in our language list

Tier 1 (Excellent — 96-99% accuracy) — Spanish, Portuguese, French, German, Italian, Dutch, Japanese, Korean.

Tier 2 (Very Good — 90-95%) — Russian, Polish, Turkish, Czech, Hungarian, Romanian, Greek, Ukrainian, Hebrew, Indonesian.

Tier 3 (Good — 85-90%) — Thai, Vietnamese, Hindi, Arabic dialects.

Frequently asked questions

How many languages does StreamTranslate support in 2026?

28+ output languages. Source language detection works for 40+ spoken languages.

Which language brings the most international viewers to Twitch?

Spanish, followed by Portuguese (Brazilian), French, and German. Spanish alone covers over 460M native speakers globally.

Can I add subtitles in Arabic to my stream?

Yes. Arabic is supported with right-to-left text rendering using the Deepgram nova-3 model.

Can I switch languages mid-stream?

Yes — change the target language from the Control Panel and the overlay updates within 1-2 seconds without restarting OBS.

Does translation accuracy degrade for fast speech?

Slightly. At normal pace accuracy stays high. Above 200 WPM accuracy drops 3-5%.