There are two ways to add captions to Twitch: as a Twitch Extension (viewer-optional, in-app overlay) or as an OBS browser source (burned into video, visible everywhere). Here is how both work and which to choose.
Try StreamTranslate FreeAdd StreamTranslate as a browser source in OBS. Captions appear burned into your video stream — visible to every viewer on web, mobile, app, TV, and embed without any viewer action. This is the universally recommended approach for maximum caption reach.
Twitch Extensions appear as an overlay in the Twitch player for viewers who have them enabled. StreamTranslate offers Twitch Extension availability. Viewers must install or enable the extension — so caption reach is lower than the OBS method, but it gives viewers more control over caption style and position.
For most streamers, the OBS browser source method is the right choice: all viewers see captions automatically, it works on every platform (not just Twitch web), and there is no viewer action required. Extensions are a good supplement but should not be the primary caption delivery method.
Browser source captions appear in the video itself — visible on Twitch, Kick, YouTube, embeds, clips, and every viewer context.
Twitch Extension captions give viewers control over caption position and style — a nice option for Twitch-specific audiences.
OBS browser source for universal reach. StreamTranslate Extension for enhanced in-app experience. Both work simultaneously.
Either method takes under 2 minutes to configure. Start with OBS browser source — the fastest, most reliable path to captions.
Yes. Twitch Extensions can display caption overlays to viewers. StreamTranslate is also available as an extension for Twitch viewers who want captions independent of the stream overlay.
OBS captions (via StreamTranslate browser source) are burned into the video — visible to all viewers everywhere. Twitch Extension captions are viewer-optional overlays visible only on Twitch web and app.
The primary method is OBS browser source (works on all viewers). StreamTranslate also has Twitch Extension availability — check streamtranslate.live for the latest extension options.
Twitch Extension support on mobile is limited. OBS browser source captions (visible in the video itself) are the most universally compatible approach for all viewer contexts.
Yes. OBS browser source captions appear in the video stream. A Twitch Extension provides additional in-app caption controls for viewers. Both can be active simultaneously.