Butter, Fatter, Captain Moor
Better, Faster, Caption More
Upgrade your live captions with better accuracy and faster performance
What
Line 21 is a caption delivery software that helps agencies create, enhance, translate and deliver live captions to their clients.
Send captions through Line 21 simply; directly using a keyboard macro or via connector.
Why
We believe captions are better when humans and AI work together. The accuracy of human captioners paired with AI's contextual proof-reading ability ensures a higher standard of inclusivity for live content. This partnership empowers captioners to innovate securely and allows viewers to enjoy customized accessibility.
Features
We integrate a wide range of services and we deliver captions to a variety of endpoints.
100 +
Ai Proofreader
A innovative dynamic safeguard for caption accuracy.
Caption Encoding
Fast delivery of captions. It takes ~144ms for captions to be delivered to viewers.
Destinations
Distribute captions to a wide range or destination, from YouTube, Facebook, Zoom and Team to custom RTMP, web link and overlay app.
Ai Translations
Automatically translate captions in 100 languages.
100+ Languages
We support captions, translations and proofreading in over 100 languages. Because we live in a diverse world.
Integrations
We integrate a wide range of services and we deliver captions to a variety of endpoints.
We also provide APIs for other software to integrate with Line 21.
Community
Discord
This is our home.
Here you can chat with us, get latest updates, real-time support, etc.
Join our Discord serverDocs
This is our knowledge center.
Here you find out how to use Line 21, from general use cases down to specifics.
See Documentation