Line 21

About Line 21

Line 21 provides state-of-the-art live captioning and translation solutions designed for accessible communication across various industries and events.

Combining AI technology with experienced human captioners, the platform creates, enhances, translates, and delivers live captions with low latency to multiple destinations, including social media, video conferencing, and custom endpoints.

Its AI Proofreader acts as a dynamic safeguard, ensuring caption accuracy in real time, while automatic translation supports over 100 languages, catering to a global audience.

The platform’s flexible integration options, such as APIs and direct delivery through browser links or encoding, make it adaptable for concerts, conferences, corporate events, and screenings.

With a focus on accessibility and inclusivity, Line 21 empowers organizations to deliver high-quality, real-time captions and translations, improving communication and audience engagement worldwide.

Its user-friendly interface and comprehensive support make it an ideal solution for broadcasters, event organizers, and accessibility providers seeking reliable, multilingual captioning services..

Smart Features

• AI Proofreader for real-time caption accuracy safeguarding
• Supports over 100 languages for captions and translations
• Low latency delivery (~144ms) across multiple platforms
• Flexible integration via APIs, web links, and encoding standards
• Supports diverse destinations including social media, video platforms, and custom streams
• Combines AI and human expertise for high-quality captioning
• Easy-to-use interface with direct caption sending via keyboard macros or connectors
• Technical support and continuous updates for optimal performance

Use Cases & Applications

• Live broadcasts and streaming events
• Corporate conferences and meetings
• Concerts, screenings, and cultural events
• Educational webinars and online classes
• Accessibility services for deaf and hard-of-hearing audiences
• Multilingual content delivery for international audiences

Who is it for?

• Event organizers and producers
• Broadcasters and streaming platforms
• Accessibility service providers
• Corporate communications teams
• Educational institutions and online educators
• Government and public service organizations

Business Opportunities in Line 21

Leveraging Line 21’s live captioning and translation services can open up a profitable side hustle in the growing market of accessible content delivery.

By offering real-time captioning for events, webinars, and broadcasts, you can serve clients across industries seeking to improve accessibility and reach diverse audiences.

With minimal startup costs, you can develop a niche providing multilingual captioning services, targeting organizations that require high-quality, instant content translation.

Partnering with event organizers, corporate clients, or educational institutions, you can create a scalable business model that combines AI-powered automation with human oversight, ensuring accurate and engaging content.

This opportunity not only taps into the expanding demand for inclusive communication solutions but also allows flexibility and potential for growth in the digital content industry..