For YouTube streamers
Why translate your YouTube live stream?
YouTube's audience is global by default — viewers land on your stream from search and recommendations in every country. BabelStreamer turns your speech into real-time translated captions, so a viewer who doesn't speak your language can follow the stream instead of clicking away.
Built for YouTube specifically
- Link your live stream's YouTube video ID to your BabelStreamer account so viewers can find your session automatically
- The desktop extension overlays captions directly on your YouTube tab — no extra window to manage
- The mobile reader works with YouTube live streams too
What it doesn't change
- Your existing OBS scenes, overlays, and setup — the BabelStreamer plugin is one extra audio filter
- Your stream's own latency — captions arrive at about the same time, not seconds behind
- YouTube's own auto-captions, if you use them — BabelStreamer runs independently, translated per viewer
Good to know: the mobile reader shows chat alongside translated captions for Twitch streams, but not yet for YouTube ones — that's a current limitation of chat support, not of the captions themselves. See the full feature list for other current limits.
Setup
How it works on YouTube
Three pieces, one per job — see the full OBS plugin walkthrough for setup details.
1–2. You (the streamer)
- Install the BabelStreamer OBS plugin and add it as a filter on your mic source
- Once you go live, add that stream's YouTube video ID to your account — the plugin only connects while you're actually streaming
3. Your viewers
- Install the free browser extension (or open the mobile reader on phone/tablet)
- Pick your language once — no account needed, and it's free for viewers
Languages
Supported languages
Speech recognition (what you speak on stream): English, French, German, Spanish.
Caption translation (what viewers can read): English, French, Dutch, Spanish, Tagalog, German, Japanese, Korean, Portuguese, Brazilian Portuguese, Russian, Italian, and Chinese.
Caption translation (what viewers can read): English, French, Dutch, Spanish, Tagalog, German, Japanese, Korean, Portuguese, Brazilian Portuguese, Russian, Italian, and Chinese.