Overlay
Show live captions on screen over other content with the Line 21 App's floating, borderless overlay window, with colours and styling you can customise.
The Overlay is a floating, borderless window with customizable colors and styling, designed to display captions on screen on top of other content or applications.
This feature is part of the Line 21 App, which you can install on your computer to manage your captions and other settings.
Explore the Overlay documentation for more details.
Supported languages
The overlay can display all languages supported by Line 21 as a source.
Browser
Show live captions on a browser page with very low latency and every language available, so viewers can follow along on any phone, tablet or computer.
Text destinations
Send captions as text to platforms such as Zoom, Microsoft Teams and YouTube through API credentials, and what to expect from each, such as timestamps.