OpenToolslogo
ToolsExpertsSubmit a Tool
AdvertiseLearn AI
  1. home
  2. tools
  3. line-21
Line 21 screenshot

Line 21

CommunicationPaid

Comprehensive real-time captioning solutions for all your accessibility needs.

Last updated May 22, 2026

Claim Tool

What is Line 21?

Line 21 offers a comprehensive suite of services focused on captions and accessibility. They support a variety of clients, including event organizers and agencies, with both human and AI captioning solutions. Their services range from live captioning provided by experienced stenographers to AI-powered proofreading, translations, and automatic speech recognition. With a global network of professional captioners, Line 21 ensures coverage in numerous languages and time zones. They also provide technical support and have solutions tailored for live events, education, corporate use, and broadcasting. Additional offerings include electronic notetaking and access to government schemes like the UK's Access to Work.

Line 21's Top Features

Key capabilities that make Line 21 stand out.

Human and AI-powered captioning

Live support during events

AI Proofreader for context-aware error correction

AI Translations in 120 languages

Automatic Speech Recognition with high accuracy

Global network of professional captioners

Low latency video caption encoding

Transcripts available in multiple formats

Technical support for setup and integration

Accessibility in over 100 languages

Use Cases

Who benefits most from this tool.

Event Organizers

Ensure accessibility for all audience members by providing real-time captions during live events.

Educational Institutions

Facilitate inclusive learning by offering real-time, multilingual captions for virtual and in-person classes.

Broadcast Networks

Deliver accurate and timely captions for live broadcasts, including news and sports events.

Corporations

Enhance corporate communication with real-time captions during meetings and conferences, ensuring inclusivity and compliance.

Captioning Agencies

Leverage advanced AI and human captioning for a variety of client needs, across different languages and specializations.

Deaf or Hard of Hearing Individuals

Access real-time captions for better engagement in live events, educational settings, and workplace meetings.

Government Programs

Support accessibility initiatives such as the UK's Access to Work scheme with reliable real-time captioning.

Technical Teams

Receive dedicated support and consultation for setting up and managing captioning integrations and deliveries.

Concert Organizers

Provide captions for lyrics and dialogues, making performances accessible to all attendees.

Students

Benefit from electronic notetaking for a condensed version of lectures, enhancing study and review sessions.

Explore Top AI Use Cases

Tags

captionsaccessibilityAI captioninghuman captioninglive captioningproofreadingtranslationsautomatic speech recognitiontechnical supportlive eventseducationcorporate usebroadcastingnotetakinggovernment schemes

Line 21's Pricing

Top Line 21 Alternatives

  • Thumbnail image for Ava

    Ava

    Ava Scribe: Premium Captions for Inclusive and Effective Communication

  • Thumbnail image for Captions

    Captions

    Effortless Online Video Editing with Captions.ai

  • Thumbnail image for imagetocaption.ai

    imagetocaption.ai

    Generate Authentic Captions with imagetocaption.ai

  • Thumbnail image for imagetocaption

    imagetocaption

    imagetocaption: Pricing, Features, FAQs, and Alternatives

  • Thumbnail image for SpeechLab

    SpeechLab

    Natural-Sounding AI Voice Solutions by Speechlab

  • Thumbnail image for Taption

    Taption

    Streamline Your Video Transcription and Editing with Taption

  • Thumbnail image for AudioTranscription

    AudioTranscription

    Fast, Accurate, and Secure AI-Powered Transcription Service

  • Thumbnail image for Vscoped

    Vscoped

    Revolutionize Your Content with Vscoped AI Transcribing and Translation

  • Thumbnail image for Captioncue

    Captioncue

    Elevate Your Social Media Game with Caption Cue's AI-Powered Captions!

User Reviews

Share your thoughts

If you've used this product, share your thoughts with other builders

Recent reviews

Frequently Asked Questions

What types of captioning services do you offer?
We offer both human and AI-powered captioning solutions, including live captioning, automatic speech recognition, and AI proofreading.
How accurate are your live captions?
Our live captions are produced by accredited stenographers and respeakers, offering high accuracy and typically reaching speeds of up to 300 words per minute.
Can you provide captions in different languages?
Yes, we support captions, translations, and proofreading in over 100 languages thanks to our global network of professional captioners and advanced AI models.
What technical support do you offer?
We provide dedicated technical support, including live event support, caption encoding, and assistance with setup and integration across multiple platforms.
How does your AI Proofreader work?
The AI Proofreader safeguards against typos and name errors using context-aware AI. It can be fine-tuned with context-specific glossary and terms.
What is the cost of your AI services?
AI Proofreading costs $1 per minute, AI Translations cost $0.15 per minute, and Automatic Speech Recognition (ASR) costs $0.25 per minute.
How do I download transcripts after a session?
All captioner transcripts are available to download in multiple formats (TXT, SRT, VTT) immediately at the end of your session.
Can you provide services for specific industries or specialized terminology?
Yes, we can. Our network includes specialists in various fields, ensuring accurate captions even for tricky terminology or specific industry jargon.
Do you offer services for in-person events?
Yes, we support both virtual and in-person events. You will need an internet connection to use our services even for in-person events.
How does your billing system work?
We offer a basic pay-as-you-go plan, and you pay for minutes used at the end of each month. There are also bundles available for upfront purchase with potential discounts.
  • Relevant Search Queries

    • sissy bbc caption
    • bbc sissy caption

Footer

Company name

The right AI tool is out there. We'll help you find it.

LinkedInX

Knowledge Hub

  • News
  • Resources
  • Newsletter
  • Blog
  • AI Tool Reviews
  • YouTube Summary
  • YouTube Transcript Generator

Industry Hub

  • AI Companies
  • AI Tools
  • AI Models
  • MCP Servers
  • AI Tool Categories
  • Top AI Use Cases

For Builders

  • Submit a Tool
  • Experts & Agencies
  • Advertise
  • Compare Tools
  • Favourites

Legal

  • Privacy Policy
  • Terms of Service

© 2026 OpenTools - All rights reserved.