Add real-time translated captions to your vMix production via Web Browser input. Professional subtitle overlay for vMix live streams, recordings, and NDI outputs.
Get Started FreevMix supports Web Browser inputs — URLs that render as video layers within a vMix production. StreamTranslate generates a browser source URL that displays live translated captions. Add that URL as a vMix Web Browser input and overlay it on your production output.
Unlike OBS, vMix uses a dedicated Web Browser input type rather than a "browser source." The setup is slightly different but works on the same underlying technology — Chromium rendering a live caption overlay.
When adding StreamTranslate as a vMix Web Browser input, use these settings for best results:
vMix's overlay system works differently from OBS scenes. To position StreamTranslate captions:
StreamTranslate captures audio via your browser's microphone access — not from vMix's internal audio bus. Ensure the microphone that captures your commentary is set as the default audio device in your system settings, or grant explicit mic access to the embedded browser in vMix.
Corporate events, conferences, and live productions broadcast internationally need translated captions in real time. StreamTranslate delivers professional captions without requiring a human interpreter — captions appear on stream within 500ms.
Houses of worship and nonprofit organizations with multi-language congregations use vMix for professional live production. StreamTranslate adds translated captions to sermon and event broadcasts so all attendees understand — regardless of language.
Tournament productions built on vMix can add translated commentary captions to reach international esports audiences. Captions layer over the production frame without affecting gameplay capture or graphics.
vMix is widely used for hybrid conferences with in-room and remote audiences. StreamTranslate adds live translated captions for remote viewers watching in non-English markets.
StreamTranslate supports 65 translation languages for vMix productions:
vMix includes a built-in Title system for static text overlays and limited caption tools. Here's how StreamTranslate compares for live translation use cases:
StreamTranslate fills the gap vMix leaves for real-time multilingual captioning.
Yes. Add your StreamTranslate URL as a Web Browser input in vMix and overlay it on your production output. Works with vMix 4K, HD, and Basic HD.
vMix 26+ supports transparent Web Browser inputs. Earlier versions may show a black background — position the caption area over a part of your frame where the background is acceptable, or upgrade to a transparent-capable vMix version.
Yes. StreamTranslate captions are burned into the vMix output frame — they appear in live streams, local recordings, and NDI outputs.
Yes. Captions are part of the output frame, so they're included in NDI signals sent from vMix to other devices on your network.
StreamTranslate captures audio via browser microphone access — not vMix's internal audio bus. Use your system microphone as the audio source for StreamTranslate.
Also supports IRL with Moblin and the OBS audio plugin, including home and cloud OBS setups such as IRL Toolkit.
Use an OBS receiver for IRL Pro, Larix Broadcaster, PRISM Live Mobile or TVU Go. Cloud providers may need to install the plugin on your server.
Moblin · Moblin Browser Source · Cloud OBS · IRL Toolkit · OBS Studio · IRL Pro · Larix Broadcaster · PRISM Live Mobile · TVU Go · MediaMTX