Translate your stream captions in real time to 125+ languages. StreamTranslate is the live translation tool for Twitch, YouTube, and Kick — powered by our industry-leading speech AI and delivered via OBS browser source.
Start Translating Your StreamLive translation is one of the most impactful things a streamer can add to their setup. When your English stream has Spanish captions, you are not just serving your existing audience better — you are becoming discoverable to the entire Spanish-speaking gaming community that was previously unable to engage with your content. The same logic applies to every one of the 125+ languages StreamTranslate supports.
The translation pipeline starts with our industry-leading speech AI transcription. enterprise speech AI converts your streaming audio to text in real time — typically within 300-500 milliseconds of speech. That transcription feeds into a parallel translation engine that converts your words into each configured target language simultaneously. Spanish, Japanese, and Portuguese captions generate in parallel, not in sequence, so latency does not compound across languages.
The total time from speech to translated caption on screen is typically under two seconds. For live streaming, this is fast enough that captions read as synchronized rather than delayed — the viewing experience is natural, not the awkward lag that makes poor-quality live translation more frustrating than helpful.
From speech to translated caption in under two seconds. our industry-leading speech AI transcription feeds directly into parallel real-time translation for every configured language.
Translate to Spanish, Japanese, Korean, French, Portuguese, German, and 119 more languages. Reach gaming communities worldwide from a single stream.
Translated captions appear as an OBS browser source overlay. Works on Twitch, YouTube, Kick, and any platform you stream to through OBS.
Gaming is the most global entertainment category in the world. The same titles — Valorant, League of Legends, Fortnite, Minecraft, Apex Legends — are played in every country, by communities that speak dozens of different languages. The gaming streaming ecosystem reflects this: the largest gaming audiences are not in English-speaking countries. Japan, South Korea, Brazil, and various European markets collectively represent gaming audiences that dwarf the US gaming viewership.
Streamers who add live translation unlock these audiences in a way that was simply not possible before AI translation tools. A North American streamer adding Korean and Japanese captions to their Valorant stream becomes visible to Korean and Japanese gaming communities that actively seek Valorant content in their language. The algorithm treats international viewer engagement the same as English viewer engagement — your clip gets recommended in Seoul the same way it gets recommended in Seattle.
The setup process for live translation mirrors the general StreamTranslate setup: connect your mic, choose your target languages from the 125+ options, copy the OBS browser source URL, and drop it into your OBS scene. Your next stream is translated from the moment you go live. The first time an international viewer discovers your stream via a translated caption and leaves a comment in their language, you will understand why live translation is the highest-leverage growth tool available to streamers in 2026. Start today at our pricing page.
StreamTranslate uses our industry-leading speech AI to transcribe your audio in real time, then passes that transcription through a real-time translation model that generates captions in your target languages. The full pipeline from speech to translated caption takes under two seconds.
Spanish, Portuguese (Brazilian), Japanese, Korean, French, and German are the most popular translation targets for gaming streamers. StreamTranslate supports all of these plus 119 more.
Translation accuracy depends first on transcription accuracy (enterprise speech AI delivers 95%+) then on translation quality. Best results on major language pairs like English to Spanish and English to French, with strong performance across all 125+ supported languages.
Yes. StreamTranslate translation pipeline handles gaming terminology reasonably well. Common game names, characters, and mechanics are typically recognized and translated appropriately.
The caption overlay displays the language or languages you configure as the streamer. You can set up multiple browser source layers for different languages, or choose the most relevant translation target for your primary international audience.