<aside> 📌 Welcome to Line 21’s technical documentation!

This is your gateway on how to operate Line 21 to enable you to achieve the best results with our software.

This documentation follows our software releases. Sometimes it anticipates features under development, sometimes it will lag behind features released. If you notice something out of place, please contact us.

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What is Line 21?

• A technology platform for agencies and writers to produce high quality live captions.
• A software that uses AI to increase the accuracy of human-produced captions.
• A global agency delivering live captions via human stenographers and automated speech recognition depending on client preference; all supported by our innovative and unique software solution.

We do not believe AI will replace humans, instead we believe that AI is an excellent assistant to help humans achieve even better results. Read about our Intelligent Proofreader.

How can we work together?

Have a look around this documentation, book a demo, open a test account and, when ready, you can subscribe and buy packages of minutes. You can also join our network of partner agencies.

Contact us and we can help.