Intelligent Captioning Solutions

Deliver accessible content worldwide with our dynamic captioning and translation solutions.

What

We are experts in real time remote captioning for your audiences. Our captioners have decades of experience, and our captioning software is a revolutionary all-in-one solution for all viewer destinations.

We're international, working with hundreds of captioners and agencies worldwide to deliver the fastest, most accurate captions in over a hundred languages. We support accessible corporations and concerts, societies and screenings, and provide technical support to make every minute matter.

Technology

Line 21 is a state-of-the-art caption delivery software that creates, enhances, translates and delivers live captions to clients. Humans and Ai services together.

Create

Send captions through Line 21 simply; directly using a keyboard macro or via connector.

Enhance

Translate

Deliver

Create

Enhance

Translate

Deliver

Send captions through Line 21 simply; directly using a keyboard macro or via connector.

Features

We integrate a wide range of services and we deliver captions to a variety of endpoints.

γλώσσεςभाषाएँ语言мови

100 +

languagesภาษาlínguas言語

Ai Proofreader

An innovative dynamic safeguard for caption accuracy.

Caption Encoding

Use CEA-x08 to encode captions into video streams.

144ms

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.

Explore product features

100+ Languages

We support captions, translations and proofreading in over 100 languages. Because we live in a diverse world.

EnglishEnglish (United Kingdom)English (United States)AfrikaansAlbanianAmharicArabicArmenianAzerbaijaniBasqueBashkirBelarusianBengaliBosnianBulgarianCatalanCebuanoChinese (Simplified)Chinese (Traditional)CorsicanCroatianCzechDanishDutchEsperantoEstonianFinnishFrenchFrench (Canadian)FrisianGalicianGeorgianGermanGreekGujaratiHaitian CreoleHausaHawaiianHebrewHindiHmongHungarianIcelandicIgboIndonesianIrishItalianJapaneseJavaneseKannadaKazakhKhmerKinyarwandaKoreanKurdishKyrgyzLaoLatinLatvianLithuanianLuxembourgishMacedonianMalagasyMalayMalayalamMalteseMaoriMarathiMongolianMyanmar (Burmese)NepaliNorwegianNyanja (Chichewa)Odia (Oriya)PashtoPersianPolishPortuguese (Portugal)Portuguese (Brazil)PunjabiRomanianRussianSamoanScots GaelicSerbianSesothoShonaSindhiSinhala (Sinhalese)SlovakSlovenianSomaliSpanishSpanish (Latin America)SundaneseSwahiliSwedishTagalog (Filipino)TajikTamilTamasheqTatarTeluguThaiTurkishTurkmenUkrainianUrduUyghurUzbekVietnameseWelshXhosaYiddishYorubaZulu

We reached out to Line-21 for a live broadcast for which we needed to translate closed captions from French to English. Contact was very easy and they understood our needs quite rapidly.

The team were very present for each technical test and made sure that everything was ready.

The event went well and our client was very satisfied with the quality and accuracy of the caption. We will definitely reach out to them for another project.