Glossary
What is a
Stream Overlay?
Stream overlays add visual elements on top of your gameplay or camera. StreamTranslate uses an overlay to display real-time translated subtitles.
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Definition
A stream overlay is a transparent graphical layer that sits on top of your main video content (gameplay, webcam, or scene) in your streaming software. Overlays add visual elements — alerts, chat boxes, widgets, and subtitles — without blocking the underlying video.
Common Types of Stream Overlays
- Alert overlays: Follower, subscriber, and donation notifications
- Chat overlays: Shows Twitch or YouTube chat on screen
- Webcam frames: Decorative borders around your camera feed
- Info panels: Health bars, timers, or game stat widgets
- Subtitle overlays: Real-time captions — like StreamTranslate
How StreamTranslate's Overlay Works
StreamTranslate provides a web-based overlay URL. You add it to OBS as a browser source at 1920×1080 with a transparent background. The overlay renders translated subtitles in real time as you speak — floating over your stream cleanly.
- Fully transparent background — subtitles only, no black boxes
- Customizable font, size, and position
- Works with any existing overlay setup — no conflicts
Pricing
- Stream Pass — $9.99: One full stream session, all languages
- Starter — $14.99/mo: 25 hours/month, single language
- Pro — $34.99/mo: 40 hours/month, dual language
- Unlimited — $79.99/mo: Unlimited hours, dual language
See full pricing →